Home / 13,677,572.20-18,873,405.22-7,878,240.04

Finding the Fourth Proportional to 13,677,572.20, 18,873,405.22 and 7,878,240.04

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Solution

The fourth proportional to 13,677,572.20, 18,873,405.22 and 7,878,240.04 is: 10,871,024.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,677,572.20 : 18,873,405.22 = 7,878,240.04 : x
  2. Step 2: Convert to fraction form
    13,677,572.20/18,873,405.22 = 7,878,240.04/x
  3. Step 3: Cross multiply
    13,677,572.20x = 18,873,405.22 × 7,878,240.04
  4. Step 4: Simplify right side
    13,677,572.20x = 148,689,216,695,349
  5. Step 5: Solve for x
    x = 148,689,216,695,349/13,677,572.20
  6. Step 6: Final answer
    x = 10,871,024.08

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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.