Home / 782,890,509.96-1,174,793,689.95-291,942,952.20

Finding the Fourth Proportional to 782,890,509.96, 1,174,793,689.95 and 291,942,952.20

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Solution

The fourth proportional to 782,890,509.96, 1,174,793,689.95 and 291,942,952.20 is: 438,085,190.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,890,509.96 : 1,174,793,689.95 = 291,942,952.20 : x
  2. Step 2: Convert to fraction form
    782,890,509.96/1,174,793,689.95 = 291,942,952.20/x
  3. Step 3: Cross multiply
    782,890,509.96x = 1,174,793,689.95 × 291,942,952.20
  4. Step 4: Simplify right side
    782,890,509.96x = 342,972,738,069,934,464
  5. Step 5: Solve for x
    x = 342,972,738,069,934,464/782,890,509.96
  6. Step 6: Final answer
    x = 438,085,190.34

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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.