Home / 28,543,647.38-39,390,253.63-15,490,903.19

Finding the Fourth Proportional to 28,543,647.38, 39,390,253.63 and 15,490,903.19

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Solution

The fourth proportional to 28,543,647.38, 39,390,253.63 and 15,490,903.19 is: 21,377,457.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,543,647.38 : 39,390,253.63 = 15,490,903.19 : x
  2. Step 2: Convert to fraction form
    28,543,647.38/39,390,253.63 = 15,490,903.19/x
  3. Step 3: Cross multiply
    28,543,647.38x = 39,390,253.63 × 15,490,903.19
  4. Step 4: Simplify right side
    28,543,647.38x = 610,190,605,376,197.50
  5. Step 5: Solve for x
    x = 610,190,605,376,197.50/28,543,647.38
  6. Step 6: Final answer
    x = 21,377,457.39

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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.