Home / 782,351,130.60-1,173,526,695.90-770,257,895.40

Finding the Fourth Proportional to 782,351,130.60, 1,173,526,695.90 and 770,257,895.40

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Solution

The fourth proportional to 782,351,130.60, 1,173,526,695.90 and 770,257,895.40 is: 1,155,386,843.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,351,130.60 : 1,173,526,695.90 = 770,257,895.40 : x
  2. Step 2: Convert to fraction form
    782,351,130.60/1,173,526,695.90 = 770,257,895.40/x
  3. Step 3: Cross multiply
    782,351,130.60x = 1,173,526,695.90 × 770,257,895.40
  4. Step 4: Simplify right side
    782,351,130.60x = 903,918,202,979,649,792
  5. Step 5: Solve for x
    x = 903,918,202,979,649,792/782,351,130.60
  6. Step 6: Final answer
    x = 1,155,386,843.10

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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.