Home / 145,332,145.72-200,563,202.76-79,256,249.08

Finding the Fourth Proportional to 145,332,145.72, 200,563,202.76 and 79,256,249.08

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Solution

The fourth proportional to 145,332,145.72, 200,563,202.76 and 79,256,249.08 is: 109,376,264.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,332,145.72 : 200,563,202.76 = 79,256,249.08 : x
  2. Step 2: Convert to fraction form
    145,332,145.72/200,563,202.76 = 79,256,249.08/x
  3. Step 3: Cross multiply
    145,332,145.72x = 200,563,202.76 × 79,256,249.08
  4. Step 4: Simplify right side
    145,332,145.72x = 15,895,887,154,229,102
  5. Step 5: Solve for x
    x = 15,895,887,154,229,102/145,332,145.72
  6. Step 6: Final answer
    x = 109,376,264.11

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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.