Home / 15,423,752.74-21,272,367.93-13,559,181.63

Finding the Fourth Proportional to 15,423,752.74, 21,272,367.93 and 13,559,181.63

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Solution

The fourth proportional to 15,423,752.74, 21,272,367.93 and 13,559,181.63 is: 18,700,760.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,423,752.74 : 21,272,367.93 = 13,559,181.63 : x
  2. Step 2: Convert to fraction form
    15,423,752.74/21,272,367.93 = 13,559,181.63/x
  3. Step 3: Cross multiply
    15,423,752.74x = 21,272,367.93 × 13,559,181.63
  4. Step 4: Simplify right side
    15,423,752.74x = 288,435,900,463,057.12
  5. Step 5: Solve for x
    x = 288,435,900,463,057.12/15,423,752.74
  6. Step 6: Final answer
    x = 18,700,760.14

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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.