Home / 72,434,107.40-108,651,161.10-18,581,419.40

Finding the Fourth Proportional to 72,434,107.40, 108,651,161.10 and 18,581,419.40

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Solution

The fourth proportional to 72,434,107.40, 108,651,161.10 and 18,581,419.40 is: 27,872,129.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,434,107.40 : 108,651,161.10 = 18,581,419.40 : x
  2. Step 2: Convert to fraction form
    72,434,107.40/108,651,161.10 = 18,581,419.40/x
  3. Step 3: Cross multiply
    72,434,107.40x = 108,651,161.10 × 18,581,419.40
  4. Step 4: Simplify right side
    72,434,107.40x = 2,018,892,792,696,065
  5. Step 5: Solve for x
    x = 2,018,892,792,696,065/72,434,107.40
  6. Step 6: Final answer
    x = 27,872,129.10

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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.