Home / 2,139,322.60-3,208,983.90-1,663,431.40

Finding the Fourth Proportional to 2,139,322.60, 3,208,983.90 and 1,663,431.40

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Solution

The fourth proportional to 2,139,322.60, 3,208,983.90 and 1,663,431.40 is: 2,495,147.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,139,322.60 : 3,208,983.90 = 1,663,431.40 : x
  2. Step 2: Convert to fraction form
    2,139,322.60/3,208,983.90 = 1,663,431.40/x
  3. Step 3: Cross multiply
    2,139,322.60x = 3,208,983.90 × 1,663,431.40
  4. Step 4: Simplify right side
    2,139,322.60x = 5,337,924,581,354.46
  5. Step 5: Solve for x
    x = 5,337,924,581,354.46/2,139,322.60
  6. Step 6: Final answer
    x = 2,495,147.10

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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.