Home / 345,385,848.30-518,078,772.45-140,802,398.70

Finding the Fourth Proportional to 345,385,848.30, 518,078,772.45 and 140,802,398.70

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Solution

The fourth proportional to 345,385,848.30, 518,078,772.45 and 140,802,398.70 is: 211,203,598.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,385,848.30 : 518,078,772.45 = 140,802,398.70 : x
  2. Step 2: Convert to fraction form
    345,385,848.30/518,078,772.45 = 140,802,398.70/x
  3. Step 3: Cross multiply
    345,385,848.30x = 518,078,772.45 × 140,802,398.70
  4. Step 4: Simplify right side
    345,385,848.30x = 72,946,733,876,511,472
  5. Step 5: Solve for x
    x = 72,946,733,876,511,472/345,385,848.30
  6. Step 6: Final answer
    x = 211,203,598.05

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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.