Home / 868,695,040,980.40-1,198,799,352,230.30-478,061,604,746.15

Finding the Fourth Proportional to 868,695,040,980.40, 1,198,799,352,230.30 and 478,061,604,746.15

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Solution

The fourth proportional to 868,695,040,980.40, 1,198,799,352,230.30 and 478,061,604,746.15 is: 659,725,122,235.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,695,040,980.40 : 1,198,799,352,230.30 = 478,061,604,746.15 : x
  2. Step 2: Convert to fraction form
    868,695,040,980.40/1,198,799,352,230.30 = 478,061,604,746.15/x
  3. Step 3: Cross multiply
    868,695,040,980.40x = 1,198,799,352,230.30 × 478,061,604,746.15
  4. Step 4: Simplify right side
    868,695,040,980.40x = 573,099,942,095,862,357,819,392
  5. Step 5: Solve for x
    x = 573,099,942,095,862,357,819,392/868,695,040,980.40
  6. Step 6: Final answer
    x = 659,725,122,235.15

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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.