Home / 442,679,123.18-610,951,051.15-257,040,133.40

Finding the Fourth Proportional to 442,679,123.18, 610,951,051.15 and 257,040,133.40

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Solution

The fourth proportional to 442,679,123.18, 610,951,051.15 and 257,040,133.40 is: 354,746,658.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,679,123.18 : 610,951,051.15 = 257,040,133.40 : x
  2. Step 2: Convert to fraction form
    442,679,123.18/610,951,051.15 = 257,040,133.40/x
  3. Step 3: Cross multiply
    442,679,123.18x = 610,951,051.15 × 257,040,133.40
  4. Step 4: Simplify right side
    442,679,123.18x = 157,038,939,689,351,008
  5. Step 5: Solve for x
    x = 157,038,939,689,351,008/442,679,123.18
  6. Step 6: Final answer
    x = 354,746,658.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.