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Finding the Fourth Proportional to 375,632,401.80, 563,448,602.70 and 258,731,128.20

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Solution

The fourth proportional to 375,632,401.80, 563,448,602.70 and 258,731,128.20 is: 388,096,692.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,632,401.80 : 563,448,602.70 = 258,731,128.20 : x
  2. Step 2: Convert to fraction form
    375,632,401.80/563,448,602.70 = 258,731,128.20/x
  3. Step 3: Cross multiply
    375,632,401.80x = 563,448,602.70 × 258,731,128.20
  4. Step 4: Simplify right side
    375,632,401.80x = 145,781,692,659,284,576
  5. Step 5: Solve for x
    x = 145,781,692,659,284,576/375,632,401.80
  6. Step 6: Final answer
    x = 388,096,692.30

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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.