Home / 384,765,822-531,033,563.52-243,649,922.40

Finding the Fourth Proportional to 384,765,822, 531,033,563.52 and 243,649,922.40

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Solution

The fourth proportional to 384,765,822, 531,033,563.52 and 243,649,922.40 is: 336,272,816.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,765,822 : 531,033,563.52 = 243,649,922.40 : x
  2. Step 2: Convert to fraction form
    384,765,822/531,033,563.52 = 243,649,922.40/x
  3. Step 3: Cross multiply
    384,765,822x = 531,033,563.52 × 243,649,922.40
  4. Step 4: Simplify right side
    384,765,822x = 129,386,286,543,443,472
  5. Step 5: Solve for x
    x = 129,386,286,543,443,472/384,765,822
  6. Step 6: Final answer
    x = 336,272,816.21

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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.