Home / 28,988,011.20-43,482,016.80-19,432,862.40

Finding the Fourth Proportional to 28,988,011.20, 43,482,016.80 and 19,432,862.40

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Solution

The fourth proportional to 28,988,011.20, 43,482,016.80 and 19,432,862.40 is: 29,149,293.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,988,011.20 : 43,482,016.80 = 19,432,862.40 : x
  2. Step 2: Convert to fraction form
    28,988,011.20/43,482,016.80 = 19,432,862.40/x
  3. Step 3: Cross multiply
    28,988,011.20x = 43,482,016.80 × 19,432,862.40
  4. Step 4: Simplify right side
    28,988,011.20x = 844,980,049,348,888.25
  5. Step 5: Solve for x
    x = 844,980,049,348,888.25/28,988,011.20
  6. Step 6: Final answer
    x = 29,149,293.60

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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.