Home / 345,009,077.75-517,211,285.75-129,749,491.19

Finding the Fourth Proportional to 345,009,077.75, 517,211,285.75 and 129,749,491.19

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Solution

The fourth proportional to 345,009,077.75, 517,211,285.75 and 129,749,491.19 is: 194,510,537.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,009,077.75 : 517,211,285.75 = 129,749,491.19 : x
  2. Step 2: Convert to fraction form
    345,009,077.75/517,211,285.75 = 129,749,491.19/x
  3. Step 3: Cross multiply
    345,009,077.75x = 517,211,285.75 × 129,749,491.19
  4. Step 4: Simplify right side
    345,009,077.75x = 67,107,901,164,919,032
  5. Step 5: Solve for x
    x = 67,107,901,164,919,032/345,009,077.75
  6. Step 6: Final answer
    x = 194,510,537.53

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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.