Home / 57,135,284.39-78,847,155.39-31,029,988.92

Finding the Fourth Proportional to 57,135,284.39, 78,847,155.39 and 31,029,988.92

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Solution

The fourth proportional to 57,135,284.39, 78,847,155.39 and 31,029,988.92 is: 42,821,636.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,135,284.39 : 78,847,155.39 = 31,029,988.92 : x
  2. Step 2: Convert to fraction form
    57,135,284.39/78,847,155.39 = 31,029,988.92/x
  3. Step 3: Cross multiply
    57,135,284.39x = 78,847,155.39 × 31,029,988.92
  4. Step 4: Simplify right side
    57,135,284.39x = 2,446,626,358,125,218.50
  5. Step 5: Solve for x
    x = 2,446,626,358,125,218.50/57,135,284.39
  6. Step 6: Final answer
    x = 42,821,636.13

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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.