Home / 78,781,667.22-118,380,327.39-42,416,944.02

Finding the Fourth Proportional to 78,781,667.22, 118,380,327.39 and 42,416,944.02

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Solution

The fourth proportional to 78,781,667.22, 118,380,327.39 and 42,416,944.02 is: 63,737,312.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,781,667.22 : 118,380,327.39 = 42,416,944.02 : x
  2. Step 2: Convert to fraction form
    78,781,667.22/118,380,327.39 = 42,416,944.02/x
  3. Step 3: Cross multiply
    78,781,667.22x = 118,380,327.39 × 42,416,944.02
  4. Step 4: Simplify right side
    78,781,667.22x = 5,021,331,719,970,903
  5. Step 5: Solve for x
    x = 5,021,331,719,970,903/78,781,667.22
  6. Step 6: Final answer
    x = 63,737,312.21

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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.