Home / 8,789,430.60-12,129,131.70-4,869,025.20

Finding the Fourth Proportional to 8,789,430.60, 12,129,131.70 and 4,869,025.20

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Solution

The fourth proportional to 8,789,430.60, 12,129,131.70 and 4,869,025.20 is: 6,719,098.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,789,430.60 : 12,129,131.70 = 4,869,025.20 : x
  2. Step 2: Convert to fraction form
    8,789,430.60/12,129,131.70 = 4,869,025.20/x
  3. Step 3: Cross multiply
    8,789,430.60x = 12,129,131.70 × 4,869,025.20
  4. Step 4: Simplify right side
    8,789,430.60x = 59,057,047,901,418.84
  5. Step 5: Solve for x
    x = 59,057,047,901,418.84/8,789,430.60
  6. Step 6: Final answer
    x = 6,719,098.27

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1.5x scale

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.