Home / 8,785,609.80-13,164,417.90-6,518,128.20

Finding the Fourth Proportional to 8,785,609.80, 13,164,417.90 and 6,518,128.20

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Solution

The fourth proportional to 8,785,609.80, 13,164,417.90 and 6,518,128.20 is: 9,766,807.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,785,609.80 : 13,164,417.90 = 6,518,128.20 : x
  2. Step 2: Convert to fraction form
    8,785,609.80/13,164,417.90 = 6,518,128.20/x
  3. Step 3: Cross multiply
    8,785,609.80x = 13,164,417.90 × 6,518,128.20
  4. Step 4: Simplify right side
    8,785,609.80x = 85,807,363,550,574.78
  5. Step 5: Solve for x
    x = 85,807,363,550,574.78/8,785,609.80
  6. Step 6: Final answer
    x = 9,766,807.94

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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.