Home / 1,229,349,305.70-1,696,507,153.21-664,834,187.29

Finding the Fourth Proportional to 1,229,349,305.70, 1,696,507,153.21 and 664,834,187.29

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Solution

The fourth proportional to 1,229,349,305.70, 1,696,507,153.21 and 664,834,187.29 is: 917,473,942.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,349,305.70 : 1,696,507,153.21 = 664,834,187.29 : x
  2. Step 2: Convert to fraction form
    1,229,349,305.70/1,696,507,153.21 = 664,834,187.29/x
  3. Step 3: Cross multiply
    1,229,349,305.70x = 1,696,507,153.21 × 664,834,187.29
  4. Step 4: Simplify right side
    1,229,349,305.70x = 1,127,895,954,436,041,856
  5. Step 5: Solve for x
    x = 1,127,895,954,436,041,856/1,229,349,305.70
  6. Step 6: Final answer
    x = 917,473,942.68

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Half scale
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Double scale
Find fourth proportional to 1,229,349,306.70, 1,696,507,154.59 and 664,834,188.29
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.