Home / 103,688,428.30-155,532,642.45-65,225,221.90

Finding the Fourth Proportional to 103,688,428.30, 155,532,642.45 and 65,225,221.90

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Solution

The fourth proportional to 103,688,428.30, 155,532,642.45 and 65,225,221.90 is: 97,837,832.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,688,428.30 : 155,532,642.45 = 65,225,221.90 : x
  2. Step 2: Convert to fraction form
    103,688,428.30/155,532,642.45 = 65,225,221.90/x
  3. Step 3: Cross multiply
    103,688,428.30x = 155,532,642.45 × 65,225,221.90
  4. Step 4: Simplify right side
    103,688,428.30x = 10,144,651,116,494,608
  5. Step 5: Solve for x
    x = 10,144,651,116,494,608/103,688,428.30
  6. Step 6: Final answer
    x = 97,837,832.85

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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.