Home / 318,877,442.57-478,316,169.42-76,540,346.57

Finding the Fourth Proportional to 318,877,442.57, 478,316,169.42 and 76,540,346.57

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Solution

The fourth proportional to 318,877,442.57, 478,316,169.42 and 76,540,346.57 is: 114,810,521.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,877,442.57 : 478,316,169.42 = 76,540,346.57 : x
  2. Step 2: Convert to fraction form
    318,877,442.57/478,316,169.42 = 76,540,346.57/x
  3. Step 3: Cross multiply
    318,877,442.57x = 478,316,169.42 × 76,540,346.57
  4. Step 4: Simplify right side
    318,877,442.57x = 36,610,485,377,441,632
  5. Step 5: Solve for x
    x = 36,610,485,377,441,632/318,877,442.57
  6. Step 6: Final answer
    x = 114,810,521.19

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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.