Home / 28,082,811.80-42,124,217.70-15,947,586.20

Finding the Fourth Proportional to 28,082,811.80, 42,124,217.70 and 15,947,586.20

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Solution

The fourth proportional to 28,082,811.80, 42,124,217.70 and 15,947,586.20 is: 23,921,379.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,082,811.80 : 42,124,217.70 = 15,947,586.20 : x
  2. Step 2: Convert to fraction form
    28,082,811.80/42,124,217.70 = 15,947,586.20/x
  3. Step 3: Cross multiply
    28,082,811.80x = 42,124,217.70 × 15,947,586.20
  4. Step 4: Simplify right side
    28,082,811.80x = 671,779,592,878,315.75
  5. Step 5: Solve for x
    x = 671,779,592,878,315.75/28,082,811.80
  6. Step 6: Final answer
    x = 23,921,379.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.