Home / 155,729,941.68-214,908,712.32-86,120,006.16

Finding the Fourth Proportional to 155,729,941.68, 214,908,712.32 and 86,120,006.16

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Solution

The fourth proportional to 155,729,941.68, 214,908,712.32 and 86,120,006.16 is: 118,846,378.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,729,941.68 : 214,908,712.32 = 86,120,006.16 : x
  2. Step 2: Convert to fraction form
    155,729,941.68/214,908,712.32 = 86,120,006.16/x
  3. Step 3: Cross multiply
    155,729,941.68x = 214,908,712.32 × 86,120,006.16
  4. Step 4: Simplify right side
    155,729,941.68x = 18,507,939,628,836,068
  5. Step 5: Solve for x
    x = 18,507,939,628,836,068/155,729,941.68
  6. Step 6: Final answer
    x = 118,846,378.73

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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.