Home / 442,138,835.70-663,208,253.55-399,092,114.70

Finding the Fourth Proportional to 442,138,835.70, 663,208,253.55 and 399,092,114.70

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Solution

The fourth proportional to 442,138,835.70, 663,208,253.55 and 399,092,114.70 is: 598,638,172.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,138,835.70 : 663,208,253.55 = 399,092,114.70 : x
  2. Step 2: Convert to fraction form
    442,138,835.70/663,208,253.55 = 399,092,114.70/x
  3. Step 3: Cross multiply
    442,138,835.70x = 663,208,253.55 × 399,092,114.70
  4. Step 4: Simplify right side
    442,138,835.70x = 264,681,184,395,763,264
  5. Step 5: Solve for x
    x = 264,681,184,395,763,264/442,138,835.70
  6. Step 6: Final answer
    x = 598,638,172.05

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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.