Home / 178,017,021.80-266,898,006.30-68,748,669.80

Finding the Fourth Proportional to 178,017,021.80, 266,898,006.30 and 68,748,669.80

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Solution

The fourth proportional to 178,017,021.80, 266,898,006.30 and 68,748,669.80 is: 103,073,755.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,017,021.80 : 266,898,006.30 = 68,748,669.80 : x
  2. Step 2: Convert to fraction form
    178,017,021.80/266,898,006.30 = 68,748,669.80/x
  3. Step 3: Cross multiply
    178,017,021.80x = 266,898,006.30 × 68,748,669.80
  4. Step 4: Simplify right side
    178,017,021.80x = 18,348,882,905,397,020
  5. Step 5: Solve for x
    x = 18,348,882,905,397,020/178,017,021.80
  6. Step 6: Final answer
    x = 103,073,755.08

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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.