Home / 851,438,474.40-1,277,157,711.60-647,365,130.40

Finding the Fourth Proportional to 851,438,474.40, 1,277,157,711.60 and 647,365,130.40

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Solution

The fourth proportional to 851,438,474.40, 1,277,157,711.60 and 647,365,130.40 is: 971,047,695.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,438,474.40 : 1,277,157,711.60 = 647,365,130.40 : x
  2. Step 2: Convert to fraction form
    851,438,474.40/1,277,157,711.60 = 647,365,130.40/x
  3. Step 3: Cross multiply
    851,438,474.40x = 1,277,157,711.60 × 647,365,130.40
  4. Step 4: Simplify right side
    851,438,474.40x = 826,787,368,511,299,456
  5. Step 5: Solve for x
    x = 826,787,368,511,299,456/851,438,474.40
  6. Step 6: Final answer
    x = 971,047,695.60

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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.