Home / 278,884,374.86-418,377,637.96-115,032,748.48

Finding the Fourth Proportional to 278,884,374.86, 418,377,637.96 and 115,032,748.48

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Solution

The fourth proportional to 278,884,374.86, 418,377,637.96 and 115,032,748.48 is: 172,570,190.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,884,374.86 : 418,377,637.96 = 115,032,748.48 : x
  2. Step 2: Convert to fraction form
    278,884,374.86/418,377,637.96 = 115,032,748.48/x
  3. Step 3: Cross multiply
    278,884,374.86x = 418,377,637.96 × 115,032,748.48
  4. Step 4: Simplify right side
    278,884,374.86x = 48,127,129,594,442,120
  5. Step 5: Solve for x
    x = 48,127,129,594,442,120/278,884,374.86
  6. Step 6: Final answer
    x = 172,570,190.13

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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.