Home / 12,357,781.60-18,536,672.40-8,316,205.60

Finding the Fourth Proportional to 12,357,781.60, 18,536,672.40 and 8,316,205.60

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Solution

The fourth proportional to 12,357,781.60, 18,536,672.40 and 8,316,205.60 is: 12,474,308.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,357,781.60 : 18,536,672.40 = 8,316,205.60 : x
  2. Step 2: Convert to fraction form
    12,357,781.60/18,536,672.40 = 8,316,205.60/x
  3. Step 3: Cross multiply
    12,357,781.60x = 18,536,672.40 × 8,316,205.60
  4. Step 4: Simplify right side
    12,357,781.60x = 154,154,778,818,245.41
  5. Step 5: Solve for x
    x = 154,154,778,818,245.41/12,357,781.60
  6. Step 6: Final answer
    x = 12,474,308.40

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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.