Home / 8,520,705.40-12,760,062.90-5,665,358.20

Finding the Fourth Proportional to 8,520,705.40, 12,760,062.90 and 5,665,358.20

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Solution

The fourth proportional to 8,520,705.40, 12,760,062.90 and 5,665,358.20 is: 8,484,077.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,520,705.40 : 12,760,062.90 = 5,665,358.20 : x
  2. Step 2: Convert to fraction form
    8,520,705.40/12,760,062.90 = 5,665,358.20/x
  3. Step 3: Cross multiply
    8,520,705.40x = 12,760,062.90 × 5,665,358.20
  4. Step 4: Simplify right side
    8,520,705.40x = 72,290,326,983,030.78
  5. Step 5: Solve for x
    x = 72,290,326,983,030.78/8,520,705.40
  6. Step 6: Final answer
    x = 8,484,077.74

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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.