Home / 15,423,752.49-21,272,367.59-13,559,181.38

Finding the Fourth Proportional to 15,423,752.49, 21,272,367.59 and 13,559,181.38

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Solution

The fourth proportional to 15,423,752.49, 21,272,367.59 and 13,559,181.38 is: 18,700,759.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,423,752.49 : 21,272,367.59 = 13,559,181.38 : x
  2. Step 2: Convert to fraction form
    15,423,752.49/21,272,367.59 = 13,559,181.38/x
  3. Step 3: Cross multiply
    15,423,752.49x = 21,272,367.59 × 13,559,181.38
  4. Step 4: Simplify right side
    15,423,752.49x = 288,435,890,534,843.50
  5. Step 5: Solve for x
    x = 288,435,890,534,843.50/15,423,752.49
  6. Step 6: Final answer
    x = 18,700,759.80

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1.5x scale

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.