Home / 998,911,427,473.95-1,378,498,790,126.80-542,170,005,611.15

Finding the Fourth Proportional to 998,911,427,473.95, 1,378,498,790,126.80 and 542,170,005,611.15

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Solution

The fourth proportional to 998,911,427,473.95, 1,378,498,790,126.80 and 542,170,005,611.15 is: 748,195,161,474.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,911,427,473.95 : 1,378,498,790,126.80 = 542,170,005,611.15 : x
  2. Step 2: Convert to fraction form
    998,911,427,473.95/1,378,498,790,126.80 = 542,170,005,611.15/x
  3. Step 3: Cross multiply
    998,911,427,473.95x = 1,378,498,790,126.80 × 542,170,005,611.15
  4. Step 4: Simplify right side
    998,911,427,473.95x = 747,380,696,778,010,760,577,024
  5. Step 5: Solve for x
    x = 747,380,696,778,010,760,577,024/998,911,427,473.95
  6. Step 6: Final answer
    x = 748,195,161,474.92

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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.