Home / 28,136,101.72-38,827,820.38-15,259,045.72

Finding the Fourth Proportional to 28,136,101.72, 38,827,820.38 and 15,259,045.72

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Solution

The fourth proportional to 28,136,101.72, 38,827,820.38 and 15,259,045.72 is: 21,057,483.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,136,101.72 : 38,827,820.38 = 15,259,045.72 : x
  2. Step 2: Convert to fraction form
    28,136,101.72/38,827,820.38 = 15,259,045.72/x
  3. Step 3: Cross multiply
    28,136,101.72x = 38,827,820.38 × 15,259,045.72
  4. Step 4: Simplify right side
    28,136,101.72x = 592,475,486,386,367.88
  5. Step 5: Solve for x
    x = 592,475,486,386,367.88/28,136,101.72
  6. Step 6: Final answer
    x = 21,057,483.10

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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.