Home / 851,437,426.40-1,277,156,139.60-647,364,082.40

Finding the Fourth Proportional to 851,437,426.40, 1,277,156,139.60 and 647,364,082.40

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Solution

The fourth proportional to 851,437,426.40, 1,277,156,139.60 and 647,364,082.40 is: 971,046,123.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,437,426.40 : 1,277,156,139.60 = 647,364,082.40 : x
  2. Step 2: Convert to fraction form
    851,437,426.40/1,277,156,139.60 = 647,364,082.40/x
  3. Step 3: Cross multiply
    851,437,426.40x = 1,277,156,139.60 × 647,364,082.40
  4. Step 4: Simplify right side
    851,437,426.40x = 826,785,012,393,680,256
  5. Step 5: Solve for x
    x = 826,785,012,393,680,256/851,437,426.40
  6. Step 6: Final answer
    x = 971,046,123.60

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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.