Home / 28,398,648,481.98-39,189,844,336.23-15,711,474,949.98

Finding the Fourth Proportional to 28,398,648,481.98, 39,189,844,336.23 and 15,711,474,949.98

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Solution

The fourth proportional to 28,398,648,481.98, 39,189,844,336.23 and 15,711,474,949.98 is: 21,681,674,674.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,398,648,481.98 : 39,189,844,336.23 = 15,711,474,949.98 : x
  2. Step 2: Convert to fraction form
    28,398,648,481.98/39,189,844,336.23 = 15,711,474,949.98/x
  3. Step 3: Cross multiply
    28,398,648,481.98x = 39,189,844,336.23 × 15,711,474,949.98
  4. Step 4: Simplify right side
    28,398,648,481.98x = 615,730,257,582,293,254,144
  5. Step 5: Solve for x
    x = 615,730,257,582,293,254,144/28,398,648,481.98
  6. Step 6: Final answer
    x = 21,681,674,674.52

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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.