Home / 12,366,990.10-18,550,485.15-8,587,854.10

Finding the Fourth Proportional to 12,366,990.10, 18,550,485.15 and 8,587,854.10

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Solution

The fourth proportional to 12,366,990.10, 18,550,485.15 and 8,587,854.10 is: 12,881,781.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,366,990.10 : 18,550,485.15 = 8,587,854.10 : x
  2. Step 2: Convert to fraction form
    12,366,990.10/18,550,485.15 = 8,587,854.10/x
  3. Step 3: Cross multiply
    12,366,990.10x = 18,550,485.15 × 8,587,854.10
  4. Step 4: Simplify right side
    12,366,990.10x = 159,308,859,952,416.59
  5. Step 5: Solve for x
    x = 159,308,859,952,416.59/12,366,990.10
  6. Step 6: Final answer
    x = 12,881,781.15

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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.