Home / 782,019,969.40-1,174,283,330.10-621,794,279.80

Finding the Fourth Proportional to 782,019,969.40, 1,174,283,330.10 and 621,794,279.80

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Solution

The fourth proportional to 782,019,969.40, 1,174,283,330.10 and 621,794,279.80 is: 933,687,995.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,019,969.40 : 1,174,283,330.10 = 621,794,279.80 : x
  2. Step 2: Convert to fraction form
    782,019,969.40/1,174,283,330.10 = 621,794,279.80/x
  3. Step 3: Cross multiply
    782,019,969.40x = 1,174,283,330.10 × 621,794,279.80
  4. Step 4: Simplify right side
    782,019,969.40x = 730,162,657,520,675,072
  5. Step 5: Solve for x
    x = 730,162,657,520,675,072/782,019,969.40
  6. Step 6: Final answer
    x = 933,687,995.31

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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.