Home / 103,306,384.10-142,572,879.78-77,155,501.10

Finding the Fourth Proportional to 103,306,384.10, 142,572,879.78 and 77,155,501.10

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Solution

The fourth proportional to 103,306,384.10, 142,572,879.78 and 77,155,501.10 is: 106,482,112.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,306,384.10 : 142,572,879.78 = 77,155,501.10 : x
  2. Step 2: Convert to fraction form
    103,306,384.10/142,572,879.78 = 77,155,501.10/x
  3. Step 3: Cross multiply
    103,306,384.10x = 142,572,879.78 × 77,155,501.10
  4. Step 4: Simplify right side
    103,306,384.10x = 11,000,281,982,695,958
  5. Step 5: Solve for x
    x = 11,000,281,982,695,958/103,306,384.10
  6. Step 6: Final answer
    x = 106,482,112.20

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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.