Home / 472,826,510.80-709,239,766.20-291,427,982.80

Finding the Fourth Proportional to 472,826,510.80, 709,239,766.20 and 291,427,982.80

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Solution

The fourth proportional to 472,826,510.80, 709,239,766.20 and 291,427,982.80 is: 437,141,974.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,826,510.80 : 709,239,766.20 = 291,427,982.80 : x
  2. Step 2: Convert to fraction form
    472,826,510.80/709,239,766.20 = 291,427,982.80/x
  3. Step 3: Cross multiply
    472,826,510.80x = 709,239,766.20 × 291,427,982.80
  4. Step 4: Simplify right side
    472,826,510.80x = 206,692,314,385,209,632
  5. Step 5: Solve for x
    x = 206,692,314,385,209,632/472,826,510.80
  6. Step 6: Final answer
    x = 437,141,974.20

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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.