Home / 12,481,655.70-18,722,483.55-5,291,966.10

Finding the Fourth Proportional to 12,481,655.70, 18,722,483.55 and 5,291,966.10

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Solution

The fourth proportional to 12,481,655.70, 18,722,483.55 and 5,291,966.10 is: 7,937,949.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481,655.70 : 18,722,483.55 = 5,291,966.10 : x
  2. Step 2: Convert to fraction form
    12,481,655.70/18,722,483.55 = 5,291,966.10/x
  3. Step 3: Cross multiply
    12,481,655.70x = 18,722,483.55 × 5,291,966.10
  4. Step 4: Simplify right side
    12,481,655.70x = 99,078,748,254,407.66
  5. Step 5: Solve for x
    x = 99,078,748,254,407.66/12,481,655.70
  6. Step 6: Final answer
    x = 7,937,949.15

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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.