Home / 19,785,683.70-29,696,021.55-11,688,534.90

Finding the Fourth Proportional to 19,785,683.70, 29,696,021.55 and 11,688,534.90

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Solution

The fourth proportional to 19,785,683.70, 29,696,021.55 and 11,688,534.90 is: 17,543,138.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,785,683.70 : 29,696,021.55 = 11,688,534.90 : x
  2. Step 2: Convert to fraction form
    19,785,683.70/29,696,021.55 = 11,688,534.90/x
  3. Step 3: Cross multiply
    19,785,683.70x = 29,696,021.55 × 11,688,534.90
  4. Step 4: Simplify right side
    19,785,683.70x = 347,102,984,278,327.12
  5. Step 5: Solve for x
    x = 347,102,984,278,327.12/19,785,683.70
  6. Step 6: Final answer
    x = 17,543,138.24

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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.