Home / 15,215,298.18-20,999,264.68-9,415,948.20

Finding the Fourth Proportional to 15,215,298.18, 20,999,264.68 and 9,415,948.20

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Solution

The fourth proportional to 15,215,298.18, 20,999,264.68 and 9,415,948.20 is: 12,995,341.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,215,298.18 : 20,999,264.68 = 9,415,948.20 : x
  2. Step 2: Convert to fraction form
    15,215,298.18/20,999,264.68 = 9,415,948.20/x
  3. Step 3: Cross multiply
    15,215,298.18x = 20,999,264.68 × 9,415,948.20
  4. Step 4: Simplify right side
    15,215,298.18x = 197,727,988,464,969.56
  5. Step 5: Solve for x
    x = 197,727,988,464,969.56/15,215,298.18
  6. Step 6: Final answer
    x = 12,995,341.01

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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.