Home / 149,016,344,611.32-205,641,509,436.18-81,350,934,826.68

Finding the Fourth Proportional to 149,016,344,611.32, 205,641,509,436.18 and 81,350,934,826.68

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Solution

The fourth proportional to 149,016,344,611.32, 205,641,509,436.18 and 81,350,934,826.68 is: 112,263,718,959.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,016,344,611.32 : 205,641,509,436.18 = 81,350,934,826.68 : x
  2. Step 2: Convert to fraction form
    149,016,344,611.32/205,641,509,436.18 = 81,350,934,826.68/x
  3. Step 3: Cross multiply
    149,016,344,611.32x = 205,641,509,436.18 × 81,350,934,826.68
  4. Step 4: Simplify right side
    149,016,344,611.32x = 16,729,129,031,802,776,715,264
  5. Step 5: Solve for x
    x = 16,729,129,031,802,776,715,264/149,016,344,611.32
  6. Step 6: Final answer
    x = 112,263,718,959.40

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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.