Home / 442,138,829.70-663,208,244.55-399,092,108.70

Finding the Fourth Proportional to 442,138,829.70, 663,208,244.55 and 399,092,108.70

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Solution

The fourth proportional to 442,138,829.70, 663,208,244.55 and 399,092,108.70 is: 598,638,163.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,138,829.70 : 663,208,244.55 = 399,092,108.70 : x
  2. Step 2: Convert to fraction form
    442,138,829.70/663,208,244.55 = 399,092,108.70/x
  3. Step 3: Cross multiply
    442,138,829.70x = 663,208,244.55 × 399,092,108.70
  4. Step 4: Simplify right side
    442,138,829.70x = 264,681,176,824,684,768
  5. Step 5: Solve for x
    x = 264,681,176,824,684,768/442,138,829.70
  6. Step 6: Final answer
    x = 598,638,163.05

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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.