Home / 103,356,003.40-155,034,005.10-84,224,127.40

Finding the Fourth Proportional to 103,356,003.40, 155,034,005.10 and 84,224,127.40

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Solution

The fourth proportional to 103,356,003.40, 155,034,005.10 and 84,224,127.40 is: 126,336,191.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,356,003.40 : 155,034,005.10 = 84,224,127.40 : x
  2. Step 2: Convert to fraction form
    103,356,003.40/155,034,005.10 = 84,224,127.40/x
  3. Step 3: Cross multiply
    103,356,003.40x = 155,034,005.10 × 84,224,127.40
  4. Step 4: Simplify right side
    103,356,003.40x = 13,057,603,796,874,650
  5. Step 5: Solve for x
    x = 13,057,603,796,874,650/103,356,003.40
  6. Step 6: Final answer
    x = 126,336,191.10

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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.