Home / 385,467,615.86-577,499,921.04-344,142,763.70

Finding the Fourth Proportional to 385,467,615.86, 577,499,921.04 and 344,142,763.70

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Solution

The fourth proportional to 385,467,615.86, 577,499,921.04 and 344,142,763.70 is: 515,587,848.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,467,615.86 : 577,499,921.04 = 344,142,763.70 : x
  2. Step 2: Convert to fraction form
    385,467,615.86/577,499,921.04 = 344,142,763.70/x
  3. Step 3: Cross multiply
    385,467,615.86x = 577,499,921.04 × 344,142,763.70
  4. Step 4: Simplify right side
    385,467,615.86x = 198,742,418,863,237,344
  5. Step 5: Solve for x
    x = 198,742,418,863,237,344/385,467,615.86
  6. Step 6: Final answer
    x = 515,587,848.85

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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.