Home / 640,935,295.56-961,374,053.16-267,289,319.88

Finding the Fourth Proportional to 640,935,295.56, 961,374,053.16 and 267,289,319.88

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Solution

The fourth proportional to 640,935,295.56, 961,374,053.16 and 267,289,319.88 is: 400,921,931.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,935,295.56 : 961,374,053.16 = 267,289,319.88 : x
  2. Step 2: Convert to fraction form
    640,935,295.56/961,374,053.16 = 267,289,319.88/x
  3. Step 3: Cross multiply
    640,935,295.56x = 961,374,053.16 × 267,289,319.88
  4. Step 4: Simplify right side
    640,935,295.56x = 256,965,016,819,415,360
  5. Step 5: Solve for x
    x = 256,965,016,819,415,360/640,935,295.56
  6. Step 6: Final answer
    x = 400,921,931.74

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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.