Home / 103,688,670.80-155,533,006.20-65,225,464.40

Finding the Fourth Proportional to 103,688,670.80, 155,533,006.20 and 65,225,464.40

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Solution

The fourth proportional to 103,688,670.80, 155,533,006.20 and 65,225,464.40 is: 97,838,196.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,688,670.80 : 155,533,006.20 = 65,225,464.40 : x
  2. Step 2: Convert to fraction form
    103,688,670.80/155,533,006.20 = 65,225,464.40/x
  3. Step 3: Cross multiply
    103,688,670.80x = 155,533,006.20 × 65,225,464.40
  4. Step 4: Simplify right side
    103,688,670.80x = 10,144,712,558,923,078
  5. Step 5: Solve for x
    x = 10,144,712,558,923,078/103,688,670.80
  6. Step 6: Final answer
    x = 97,838,196.60

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1.5x scale

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.