Home / 145,554,538.90-200,873,398.35-79,481,168.28

Finding the Fourth Proportional to 145,554,538.90, 200,873,398.35 and 79,481,168.28

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Solution

The fourth proportional to 145,554,538.90, 200,873,398.35 and 79,481,168.28 is: 109,688,454.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,554,538.90 : 200,873,398.35 = 79,481,168.28 : x
  2. Step 2: Convert to fraction form
    145,554,538.90/200,873,398.35 = 79,481,168.28/x
  3. Step 3: Cross multiply
    145,554,538.90x = 200,873,398.35 × 79,481,168.28
  4. Step 4: Simplify right side
    145,554,538.90x = 15,965,652,377,231,824
  5. Step 5: Solve for x
    x = 15,965,652,377,231,824/145,554,538.90
  6. Step 6: Final answer
    x = 109,688,454.22

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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.