Home / 78,377,416.80-117,552,128.40-49,572,002.40

Finding the Fourth Proportional to 78,377,416.80, 117,552,128.40 and 49,572,002.40

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Solution

The fourth proportional to 78,377,416.80, 117,552,128.40 and 49,572,002.40 is: 74,349,150.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,377,416.80 : 117,552,128.40 = 49,572,002.40 : x
  2. Step 2: Convert to fraction form
    78,377,416.80/117,552,128.40 = 49,572,002.40/x
  3. Step 3: Cross multiply
    78,377,416.80x = 117,552,128.40 × 49,572,002.40
  4. Step 4: Simplify right side
    78,377,416.80x = 5,827,294,391,169,908
  5. Step 5: Solve for x
    x = 5,827,294,391,169,908/78,377,416.80
  6. Step 6: Final answer
    x = 74,349,150.93

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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.