Home / 28,402,268,805.50-39,195,589,499.87-15,543,026,094.85

Finding the Fourth Proportional to 28,402,268,805.50, 39,195,589,499.87 and 15,543,026,094.85

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Solution

The fourth proportional to 28,402,268,805.50, 39,195,589,499.87 and 15,543,026,094.85 is: 21,449,626,949.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,402,268,805.50 : 39,195,589,499.87 = 15,543,026,094.85 : x
  2. Step 2: Convert to fraction form
    28,402,268,805.50/39,195,589,499.87 = 15,543,026,094.85/x
  3. Step 3: Cross multiply
    28,402,268,805.50x = 39,195,589,499.87 × 15,543,026,094.85
  4. Step 4: Simplify right side
    28,402,268,805.50x = 609,218,070,399,312,723,968
  5. Step 5: Solve for x
    x = 609,218,070,399,312,723,968/28,402,268,805.50
  6. Step 6: Final answer
    x = 21,449,626,949.57

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1.5x scale

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.