Home / 15,708,679.28-21,678,106.56-8,833,101.20

Finding the Fourth Proportional to 15,708,679.28, 21,678,106.56 and 8,833,101.20

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Solution

The fourth proportional to 15,708,679.28, 21,678,106.56 and 8,833,101.20 is: 12,189,752.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,708,679.28 : 21,678,106.56 = 8,833,101.20 : x
  2. Step 2: Convert to fraction form
    15,708,679.28/21,678,106.56 = 8,833,101.20/x
  3. Step 3: Cross multiply
    15,708,679.28x = 21,678,106.56 × 8,833,101.20
  4. Step 4: Simplify right side
    15,708,679.28x = 191,484,909,068,863.84
  5. Step 5: Solve for x
    x = 191,484,909,068,863.84/15,708,679.28
  6. Step 6: Final answer
    x = 12,189,752.28

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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.