Home / 15,484,871.88-21,370,320.18-9,290,151.72

Finding the Fourth Proportional to 15,484,871.88, 21,370,320.18 and 9,290,151.72

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Solution

The fourth proportional to 15,484,871.88, 21,370,320.18 and 9,290,151.72 is: 12,821,127.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,484,871.88 : 21,370,320.18 = 9,290,151.72 : x
  2. Step 2: Convert to fraction form
    15,484,871.88/21,370,320.18 = 9,290,151.72/x
  3. Step 3: Cross multiply
    15,484,871.88x = 21,370,320.18 × 9,290,151.72
  4. Step 4: Simplify right side
    15,484,871.88x = 198,533,516,777,177.72
  5. Step 5: Solve for x
    x = 198,533,516,777,177.72/15,484,871.88
  6. Step 6: Final answer
    x = 12,821,127.51

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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.