Home / 28,543,659.50-39,390,270.36-15,490,915.32

Finding the Fourth Proportional to 28,543,659.50, 39,390,270.36 and 15,490,915.32

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Solution

The fourth proportional to 28,543,659.50, 39,390,270.36 and 15,490,915.32 is: 21,377,474.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,543,659.50 : 39,390,270.36 = 15,490,915.32 : x
  2. Step 2: Convert to fraction form
    28,543,659.50/39,390,270.36 = 15,490,915.32/x
  3. Step 3: Cross multiply
    28,543,659.50x = 39,390,270.36 × 15,490,915.32
  4. Step 4: Simplify right side
    28,543,659.50x = 610,191,342,578,665.88
  5. Step 5: Solve for x
    x = 610,191,342,578,665.88/28,543,659.50
  6. Step 6: Final answer
    x = 21,377,474.13

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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.