Home / 851,437,422.40-1,277,156,133.60-647,364,078.40

Finding the Fourth Proportional to 851,437,422.40, 1,277,156,133.60 and 647,364,078.40

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Solution

The fourth proportional to 851,437,422.40, 1,277,156,133.60 and 647,364,078.40 is: 971,046,117.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,437,422.40 : 1,277,156,133.60 = 647,364,078.40 : x
  2. Step 2: Convert to fraction form
    851,437,422.40/1,277,156,133.60 = 647,364,078.40/x
  3. Step 3: Cross multiply
    851,437,422.40x = 1,277,156,133.60 × 647,364,078.40
  4. Step 4: Simplify right side
    851,437,422.40x = 826,785,003,400,871,168
  5. Step 5: Solve for x
    x = 826,785,003,400,871,168/851,437,422.40
  6. Step 6: Final answer
    x = 971,046,117.60

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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.