Home / 8,439,409.60-12,668,445.60-5,248,139.20

Finding the Fourth Proportional to 8,439,409.60, 12,668,445.60 and 5,248,139.20

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Solution

The fourth proportional to 8,439,409.60, 12,668,445.60 and 5,248,139.20 is: 7,878,011.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,439,409.60 : 12,668,445.60 = 5,248,139.20 : x
  2. Step 2: Convert to fraction form
    8,439,409.60/12,668,445.60 = 5,248,139.20/x
  3. Step 3: Cross multiply
    8,439,409.60x = 12,668,445.60 × 5,248,139.20
  4. Step 4: Simplify right side
    8,439,409.60x = 66,485,765,956,427.52
  5. Step 5: Solve for x
    x = 66,485,765,956,427.52/8,439,409.60
  6. Step 6: Final answer
    x = 7,878,011.51

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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.