Home / 5,209,142.80-7,188,274.92-2,916,778

Finding the Fourth Proportional to 5,209,142.80, 7,188,274.92 and 2,916,778

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Solution

The fourth proportional to 5,209,142.80, 7,188,274.92 and 2,916,778 is: 4,024,962.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,209,142.80 : 7,188,274.92 = 2,916,778 : x
  2. Step 2: Convert to fraction form
    5,209,142.80/7,188,274.92 = 2,916,778/x
  3. Step 3: Cross multiply
    5,209,142.80x = 7,188,274.92 × 2,916,778
  4. Step 4: Simplify right side
    5,209,142.80x = 20,966,602,144,607.76
  5. Step 5: Solve for x
    x = 20,966,602,144,607.76/5,209,142.80
  6. Step 6: Final answer
    x = 4,024,962.06

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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.