Home / 28,012,211.20-42,018,316.80-17,194,434.40

Finding the Fourth Proportional to 28,012,211.20, 42,018,316.80 and 17,194,434.40

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Solution

The fourth proportional to 28,012,211.20, 42,018,316.80 and 17,194,434.40 is: 25,791,651.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,012,211.20 : 42,018,316.80 = 17,194,434.40 : x
  2. Step 2: Convert to fraction form
    28,012,211.20/42,018,316.80 = 17,194,434.40/x
  3. Step 3: Cross multiply
    28,012,211.20x = 42,018,316.80 × 17,194,434.40
  4. Step 4: Simplify right side
    28,012,211.20x = 722,481,191,816,017.75
  5. Step 5: Solve for x
    x = 722,481,191,816,017.75/28,012,211.20
  6. Step 6: Final answer
    x = 25,791,651.60

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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.