Home / 149,016,344,611.57-205,641,509,436.52-81,350,934,826.93

Finding the Fourth Proportional to 149,016,344,611.57, 205,641,509,436.52 and 81,350,934,826.93

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Solution

The fourth proportional to 149,016,344,611.57, 205,641,509,436.52 and 81,350,934,826.93 is: 112,263,718,959.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,016,344,611.57 : 205,641,509,436.52 = 81,350,934,826.93 : x
  2. Step 2: Convert to fraction form
    149,016,344,611.57/205,641,509,436.52 = 81,350,934,826.93/x
  3. Step 3: Cross multiply
    149,016,344,611.57x = 205,641,509,436.52 × 81,350,934,826.93
  4. Step 4: Simplify right side
    149,016,344,611.57x = 16,729,129,031,881,847,734,272
  5. Step 5: Solve for x
    x = 16,729,129,031,881,847,734,272/149,016,344,611.57
  6. Step 6: Final answer
    x = 112,263,718,959.75

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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.