Home / 805,049,510.40-1,207,574,265.60-611,557,747.20

Finding the Fourth Proportional to 805,049,510.40, 1,207,574,265.60 and 611,557,747.20

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Solution

The fourth proportional to 805,049,510.40, 1,207,574,265.60 and 611,557,747.20 is: 917,336,620.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,049,510.40 : 1,207,574,265.60 = 611,557,747.20 : x
  2. Step 2: Convert to fraction form
    805,049,510.40/1,207,574,265.60 = 611,557,747.20/x
  3. Step 3: Cross multiply
    805,049,510.40x = 1,207,574,265.60 × 611,557,747.20
  4. Step 4: Simplify right side
    805,049,510.40x = 738,501,397,447,030,400
  5. Step 5: Solve for x
    x = 738,501,397,447,030,400/805,049,510.40
  6. Step 6: Final answer
    x = 917,336,620.80

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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.