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Finding the Fourth Proportional to 375,868,866.11, 563,824,844.97 and 99,512,899.20

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Solution

The fourth proportional to 375,868,866.11, 563,824,844.97 and 99,512,899.20 is: 149,275,053.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,868,866.11 : 563,824,844.97 = 99,512,899.20 : x
  2. Step 2: Convert to fraction form
    375,868,866.11/563,824,844.97 = 99,512,899.20/x
  3. Step 3: Cross multiply
    375,868,866.11x = 563,824,844.97 × 99,512,899.20
  4. Step 4: Simplify right side
    375,868,866.11x = 56,107,844,963,955,240
  5. Step 5: Solve for x
    x = 56,107,844,963,955,240/375,868,866.11
  6. Step 6: Final answer
    x = 149,275,053.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.