Home / 103,688,880.30-155,533,320.45-65,225,673.90

Finding the Fourth Proportional to 103,688,880.30, 155,533,320.45 and 65,225,673.90

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Solution

The fourth proportional to 103,688,880.30, 155,533,320.45 and 65,225,673.90 is: 97,838,510.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,688,880.30 : 155,533,320.45 = 65,225,673.90 : x
  2. Step 2: Convert to fraction form
    103,688,880.30/155,533,320.45 = 65,225,673.90/x
  3. Step 3: Cross multiply
    103,688,880.30x = 155,533,320.45 × 65,225,673.90
  4. Step 4: Simplify right side
    103,688,880.30x = 10,144,765,640,255,900
  5. Step 5: Solve for x
    x = 10,144,765,640,255,900/103,688,880.30
  6. Step 6: Final answer
    x = 97,838,510.85

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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.