Home / 20,138,587.90-30,207,881.85-5,762,124.70

Finding the Fourth Proportional to 20,138,587.90, 30,207,881.85 and 5,762,124.70

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Solution

The fourth proportional to 20,138,587.90, 30,207,881.85 and 5,762,124.70 is: 8,643,187.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,138,587.90 : 30,207,881.85 = 5,762,124.70 : x
  2. Step 2: Convert to fraction form
    20,138,587.90/30,207,881.85 = 5,762,124.70/x
  3. Step 3: Cross multiply
    20,138,587.90x = 30,207,881.85 × 5,762,124.70
  4. Step 4: Simplify right side
    20,138,587.90x = 174,061,582,142,566.72
  5. Step 5: Solve for x
    x = 174,061,582,142,566.72/20,138,587.90
  6. Step 6: Final answer
    x = 8,643,187.05

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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.