Home / 28,543,515.50-39,390,071.94-15,490,771.04

Finding the Fourth Proportional to 28,543,515.50, 39,390,071.94 and 15,490,771.04

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Solution

The fourth proportional to 28,543,515.50, 39,390,071.94 and 15,490,771.04 is: 21,377,275.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,543,515.50 : 39,390,071.94 = 15,490,771.04 : x
  2. Step 2: Convert to fraction form
    28,543,515.50/39,390,071.94 = 15,490,771.04/x
  3. Step 3: Cross multiply
    28,543,515.50x = 39,390,071.94 × 15,490,771.04
  4. Step 4: Simplify right side
    28,543,515.50x = 610,182,585,671,668.50
  5. Step 5: Solve for x
    x = 610,182,585,671,668.50/28,543,515.50
  6. Step 6: Final answer
    x = 21,377,275.19

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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.