Home / 130,745,706.17-180,437,234.73-72,008,355.72

Finding the Fourth Proportional to 130,745,706.17, 180,437,234.73 and 72,008,355.72

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Solution

The fourth proportional to 130,745,706.17, 180,437,234.73 and 72,008,355.72 is: 99,376,025.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,745,706.17 : 180,437,234.73 = 72,008,355.72 : x
  2. Step 2: Convert to fraction form
    130,745,706.17/180,437,234.73 = 72,008,355.72/x
  3. Step 3: Cross multiply
    130,745,706.17x = 180,437,234.73 × 72,008,355.72
  4. Step 4: Simplify right side
    130,745,706.17x = 12,992,988,583,875,604
  5. Step 5: Solve for x
    x = 12,992,988,583,875,604/130,745,706.17
  6. Step 6: Final answer
    x = 99,376,025.14

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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.