Home / 1,278,248,314.60-1,915,677,485.34-656,438,426.92

Finding the Fourth Proportional to 1,278,248,314.60, 1,915,677,485.34 and 656,438,426.92

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Solution

The fourth proportional to 1,278,248,314.60, 1,915,677,485.34 and 656,438,426.92 is: 983,787,187.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,248,314.60 : 1,915,677,485.34 = 656,438,426.92 : x
  2. Step 2: Convert to fraction form
    1,278,248,314.60/1,915,677,485.34 = 656,438,426.92/x
  3. Step 3: Cross multiply
    1,278,248,314.60x = 1,915,677,485.34 × 656,438,426.92
  4. Step 4: Simplify right side
    1,278,248,314.60x = 1,257,524,314,962,650,880
  5. Step 5: Solve for x
    x = 1,257,524,314,962,650,880/1,278,248,314.60
  6. Step 6: Final answer
    x = 983,787,187.98

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1.5x scale

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.