Home / 8,478,045.60-12,717,068.40-8,147,371.20

Finding the Fourth Proportional to 8,478,045.60, 12,717,068.40 and 8,147,371.20

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Solution

The fourth proportional to 8,478,045.60, 12,717,068.40 and 8,147,371.20 is: 12,221,056.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,478,045.60 : 12,717,068.40 = 8,147,371.20 : x
  2. Step 2: Convert to fraction form
    8,478,045.60/12,717,068.40 = 8,147,371.20/x
  3. Step 3: Cross multiply
    8,478,045.60x = 12,717,068.40 × 8,147,371.20
  4. Step 4: Simplify right side
    8,478,045.60x = 103,610,676,830,590.08
  5. Step 5: Solve for x
    x = 103,610,676,830,590.08/8,478,045.60
  6. Step 6: Final answer
    x = 12,221,056.80

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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.