Home / 149,016,344,614.32-205,641,509,440.32-81,350,934,829.68

Finding the Fourth Proportional to 149,016,344,614.32, 205,641,509,440.32 and 81,350,934,829.68

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Solution

The fourth proportional to 149,016,344,614.32, 205,641,509,440.32 and 81,350,934,829.68 is: 112,263,718,963.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,016,344,614.32 : 205,641,509,440.32 = 81,350,934,829.68 : x
  2. Step 2: Convert to fraction form
    149,016,344,614.32/205,641,509,440.32 = 81,350,934,829.68/x
  3. Step 3: Cross multiply
    149,016,344,614.32x = 205,641,509,440.32 × 81,350,934,829.68
  4. Step 4: Simplify right side
    149,016,344,614.32x = 16,729,129,032,756,496,433,152
  5. Step 5: Solve for x
    x = 16,729,129,032,756,496,433,152/149,016,344,614.32
  6. Step 6: Final answer
    x = 112,263,718,963.54

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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.