Home / 13,124,602.80-19,686,904.20-8,589,639.60

Finding the Fourth Proportional to 13,124,602.80, 19,686,904.20 and 8,589,639.60

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Solution

The fourth proportional to 13,124,602.80, 19,686,904.20 and 8,589,639.60 is: 12,884,459.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,124,602.80 : 19,686,904.20 = 8,589,639.60 : x
  2. Step 2: Convert to fraction form
    13,124,602.80/19,686,904.20 = 8,589,639.60/x
  3. Step 3: Cross multiply
    13,124,602.80x = 19,686,904.20 × 8,589,639.60
  4. Step 4: Simplify right side
    13,124,602.80x = 169,103,411,917,726.31
  5. Step 5: Solve for x
    x = 169,103,411,917,726.31/13,124,602.80
  6. Step 6: Final answer
    x = 12,884,459.40

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Similar ratio
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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.