Home / 5,209,145.80-7,188,279.06-2,916,781

Finding the Fourth Proportional to 5,209,145.80, 7,188,279.06 and 2,916,781

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Solution

The fourth proportional to 5,209,145.80, 7,188,279.06 and 2,916,781 is: 4,024,966.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,209,145.80 : 7,188,279.06 = 2,916,781 : x
  2. Step 2: Convert to fraction form
    5,209,145.80/7,188,279.06 = 2,916,781/x
  3. Step 3: Cross multiply
    5,209,145.80x = 7,188,279.06 × 2,916,781
  4. Step 4: Simplify right side
    5,209,145.80x = 20,966,635,784,905.86
  5. Step 5: Solve for x
    x = 20,966,635,784,905.86/5,209,145.80
  6. Step 6: Final answer
    x = 4,024,966.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.