Home / 410,211,663.42-615,319,072.85-99,318,761.46

Finding the Fourth Proportional to 410,211,663.42, 615,319,072.85 and 99,318,761.46

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Solution

The fourth proportional to 410,211,663.42, 615,319,072.85 and 99,318,761.46 is: 148,978,524.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,211,663.42 : 615,319,072.85 = 99,318,761.46 : x
  2. Step 2: Convert to fraction form
    410,211,663.42/615,319,072.85 = 99,318,761.46/x
  3. Step 3: Cross multiply
    410,211,663.42x = 615,319,072.85 × 99,318,761.46
  4. Step 4: Simplify right side
    410,211,663.42x = 61,112,728,219,148,928
  5. Step 5: Solve for x
    x = 61,112,728,219,148,928/410,211,663.42
  6. Step 6: Final answer
    x = 148,978,524.18

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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.