Home / 8,460,425.60-12,690,638.40-4,877,244.80

Finding the Fourth Proportional to 8,460,425.60, 12,690,638.40 and 4,877,244.80

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Solution

The fourth proportional to 8,460,425.60, 12,690,638.40 and 4,877,244.80 is: 7,315,867.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,460,425.60 : 12,690,638.40 = 4,877,244.80 : x
  2. Step 2: Convert to fraction form
    8,460,425.60/12,690,638.40 = 4,877,244.80/x
  3. Step 3: Cross multiply
    8,460,425.60x = 12,690,638.40 × 4,877,244.80
  4. Step 4: Simplify right side
    8,460,425.60x = 61,895,350,145,080.32
  5. Step 5: Solve for x
    x = 61,895,350,145,080.32/8,460,425.60
  6. Step 6: Final answer
    x = 7,315,867.20

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Similar ratio
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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.