Home / 932,585,031.83-1,286,985,257.31-509,215,479.33

Finding the Fourth Proportional to 932,585,031.83, 1,286,985,257.31 and 509,215,479.33

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Solution

The fourth proportional to 932,585,031.83, 1,286,985,257.31 and 509,215,479.33 is: 702,727,142.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    932,585,031.83 : 1,286,985,257.31 = 509,215,479.33 : x
  2. Step 2: Convert to fraction form
    932,585,031.83/1,286,985,257.31 = 509,215,479.33/x
  3. Step 3: Cross multiply
    932,585,031.83x = 1,286,985,257.31 × 509,215,479.33
  4. Step 4: Simplify right side
    932,585,031.83x = 655,352,814,691,755,008
  5. Step 5: Solve for x
    x = 655,352,814,691,755,008/932,585,031.83
  6. Step 6: Final answer
    x = 702,727,142.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.