Home / 28,375,498.72-39,158,307.80-15,985,740.75

Finding the Fourth Proportional to 28,375,498.72, 39,158,307.80 and 15,985,740.75

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Solution

The fourth proportional to 28,375,498.72, 39,158,307.80 and 15,985,740.75 is: 22,060,389.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,375,498.72 : 39,158,307.80 = 15,985,740.75 : x
  2. Step 2: Convert to fraction form
    28,375,498.72/39,158,307.80 = 15,985,740.75/x
  3. Step 3: Cross multiply
    28,375,498.72x = 39,158,307.80 × 15,985,740.75
  4. Step 4: Simplify right side
    28,375,498.72x = 625,974,556,699,502.75
  5. Step 5: Solve for x
    x = 625,974,556,699,502.75/28,375,498.72
  6. Step 6: Final answer
    x = 22,060,389.59

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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.