Home / 1,131,036,132.70-1,696,554,199.05-313,148,433.70

Finding the Fourth Proportional to 1,131,036,132.70, 1,696,554,199.05 and 313,148,433.70

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Solution

The fourth proportional to 1,131,036,132.70, 1,696,554,199.05 and 313,148,433.70 is: 469,722,650.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,036,132.70 : 1,696,554,199.05 = 313,148,433.70 : x
  2. Step 2: Convert to fraction form
    1,131,036,132.70/1,696,554,199.05 = 313,148,433.70/x
  3. Step 3: Cross multiply
    1,131,036,132.70x = 1,696,554,199.05 × 313,148,433.70
  4. Step 4: Simplify right side
    1,131,036,132.70x = 531,273,290,119,665,472
  5. Step 5: Solve for x
    x = 531,273,290,119,665,472/1,131,036,132.70
  6. Step 6: Final answer
    x = 469,722,650.55

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Double scale
Find fourth proportional to 1,131,036,133.70, 1,696,554,200.55 and 313,148,434.70
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.