Home / 89,820,928.65-123,922,435.80-73,272,446.40

Finding the Fourth Proportional to 89,820,928.65, 123,922,435.80 and 73,272,446.40

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Solution

The fourth proportional to 89,820,928.65, 123,922,435.80 and 73,272,446.40 is: 101,091,139.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,820,928.65 : 123,922,435.80 = 73,272,446.40 : x
  2. Step 2: Convert to fraction form
    89,820,928.65/123,922,435.80 = 73,272,446.40/x
  3. Step 3: Cross multiply
    89,820,928.65x = 123,922,435.80 × 73,272,446.40
  4. Step 4: Simplify right side
    89,820,928.65x = 9,080,100,034,912,942
  5. Step 5: Solve for x
    x = 9,080,100,034,912,942/89,820,928.65
  6. Step 6: Final answer
    x = 101,091,139.57

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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.