Home / 20,491,031.40-30,736,547.10-10,287,364.20

Finding the Fourth Proportional to 20,491,031.40, 30,736,547.10 and 10,287,364.20

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Solution

The fourth proportional to 20,491,031.40, 30,736,547.10 and 10,287,364.20 is: 15,431,046.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,491,031.40 : 30,736,547.10 = 10,287,364.20 : x
  2. Step 2: Convert to fraction form
    20,491,031.40/30,736,547.10 = 10,287,364.20/x
  3. Step 3: Cross multiply
    20,491,031.40x = 30,736,547.10 × 10,287,364.20
  4. Step 4: Simplify right side
    20,491,031.40x = 316,198,054,268,153.81
  5. Step 5: Solve for x
    x = 316,198,054,268,153.81/20,491,031.40
  6. Step 6: Final answer
    x = 15,431,046.30

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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.