Home / 438,775,809.30-658,261,144.80-147,634,714.80

Finding the Fourth Proportional to 438,775,809.30, 658,261,144.80 and 147,634,714.80

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Solution

The fourth proportional to 438,775,809.30, 658,261,144.80 and 147,634,714.80 is: 221,484,854.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,775,809.30 : 658,261,144.80 = 147,634,714.80 : x
  2. Step 2: Convert to fraction form
    438,775,809.30/658,261,144.80 = 147,634,714.80/x
  3. Step 3: Cross multiply
    438,775,809.30x = 658,261,144.80 × 147,634,714.80
  4. Step 4: Simplify right side
    438,775,809.30x = 97,182,196,376,469,504
  5. Step 5: Solve for x
    x = 97,182,196,376,469,504/438,775,809.30
  6. Step 6: Final answer
    x = 221,484,854.72

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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.