Home / 20,501,999.60-30,752,999.40-8,367,430.10

Finding the Fourth Proportional to 20,501,999.60, 30,752,999.40 and 8,367,430.10

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Solution

The fourth proportional to 20,501,999.60, 30,752,999.40 and 8,367,430.10 is: 12,551,145.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,501,999.60 : 30,752,999.40 = 8,367,430.10 : x
  2. Step 2: Convert to fraction form
    20,501,999.60/30,752,999.40 = 8,367,430.10/x
  3. Step 3: Cross multiply
    20,501,999.60x = 30,752,999.40 × 8,367,430.10
  4. Step 4: Simplify right side
    20,501,999.60x = 257,323,572,844,841.91
  5. Step 5: Solve for x
    x = 257,323,572,844,841.91/20,501,999.60
  6. Step 6: Final answer
    x = 12,551,145.15

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1.5x scale

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.