Home / 28,012,221.70-42,018,332.55-17,194,444.90

Finding the Fourth Proportional to 28,012,221.70, 42,018,332.55 and 17,194,444.90

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Solution

The fourth proportional to 28,012,221.70, 42,018,332.55 and 17,194,444.90 is: 25,791,667.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,012,221.70 : 42,018,332.55 = 17,194,444.90 : x
  2. Step 2: Convert to fraction form
    28,012,221.70/42,018,332.55 = 17,194,444.90/x
  3. Step 3: Cross multiply
    28,012,221.70x = 42,018,332.55 × 17,194,444.90
  4. Step 4: Simplify right side
    28,012,221.70x = 722,481,903,820,851.38
  5. Step 5: Solve for x
    x = 722,481,903,820,851.38/28,012,221.70
  6. Step 6: Final answer
    x = 25,791,667.35

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Double scale
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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.