Home / 457,916,338.32-631,867,134.60-309,560,263.44

Finding the Fourth Proportional to 457,916,338.32, 631,867,134.60 and 309,560,263.44

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Solution

The fourth proportional to 457,916,338.32, 631,867,134.60 and 309,560,263.44 is: 427,154,351.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,916,338.32 : 631,867,134.60 = 309,560,263.44 : x
  2. Step 2: Convert to fraction form
    457,916,338.32/631,867,134.60 = 309,560,263.44/x
  3. Step 3: Cross multiply
    457,916,338.32x = 631,867,134.60 × 309,560,263.44
  4. Step 4: Simplify right side
    457,916,338.32x = 195,600,956,645,853,952
  5. Step 5: Solve for x
    x = 195,600,956,645,853,952/457,916,338.32
  6. Step 6: Final answer
    x = 427,154,351.74

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.