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Finding the Fourth Proportional to 178,017,024.80, 266,898,010.80 and 68,748,672.80

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Solution

The fourth proportional to 178,017,024.80, 266,898,010.80 and 68,748,672.80 is: 103,073,759.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,017,024.80 : 266,898,010.80 = 68,748,672.80 : x
  2. Step 2: Convert to fraction form
    178,017,024.80/266,898,010.80 = 68,748,672.80/x
  3. Step 3: Cross multiply
    178,017,024.80x = 266,898,010.80 × 68,748,672.80
  4. Step 4: Simplify right side
    178,017,024.80x = 18,348,884,015,460,068
  5. Step 5: Solve for x
    x = 18,348,884,015,460,068/178,017,024.80
  6. Step 6: Final answer
    x = 103,073,759.58

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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.