Home / 421,808,864.10-632,713,296.15-149,179,631.10

Finding the Fourth Proportional to 421,808,864.10, 632,713,296.15 and 149,179,631.10

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Solution

The fourth proportional to 421,808,864.10, 632,713,296.15 and 149,179,631.10 is: 223,769,446.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,808,864.10 : 632,713,296.15 = 149,179,631.10 : x
  2. Step 2: Convert to fraction form
    421,808,864.10/632,713,296.15 = 149,179,631.10/x
  3. Step 3: Cross multiply
    421,808,864.10x = 632,713,296.15 × 149,179,631.10
  4. Step 4: Simplify right side
    421,808,864.10x = 94,387,936,111,722,048
  5. Step 5: Solve for x
    x = 94,387,936,111,722,048/421,808,864.10
  6. Step 6: Final answer
    x = 223,769,446.65

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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.