Home / 15,442,126.20-21,292,740.95-12,642,547.50

Finding the Fourth Proportional to 15,442,126.20, 21,292,740.95 and 12,642,547.50

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Solution

The fourth proportional to 15,442,126.20, 21,292,740.95 and 12,642,547.50 is: 17,432,475.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,442,126.20 : 21,292,740.95 = 12,642,547.50 : x
  2. Step 2: Convert to fraction form
    15,442,126.20/21,292,740.95 = 12,642,547.50/x
  3. Step 3: Cross multiply
    15,442,126.20x = 21,292,740.95 × 12,642,547.50
  4. Step 4: Simplify right side
    15,442,126.20x = 269,194,488,802,357.41
  5. Step 5: Solve for x
    x = 269,194,488,802,357.41/15,442,126.20
  6. Step 6: Final answer
    x = 17,432,475.64

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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.