Home / 388,741,570.80-583,112,356.20-377,979,890.55

Finding the Fourth Proportional to 388,741,570.80, 583,112,356.20 and 377,979,890.55

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Solution

The fourth proportional to 388,741,570.80, 583,112,356.20 and 377,979,890.55 is: 566,969,835.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,741,570.80 : 583,112,356.20 = 377,979,890.55 : x
  2. Step 2: Convert to fraction form
    388,741,570.80/583,112,356.20 = 377,979,890.55/x
  3. Step 3: Cross multiply
    388,741,570.80x = 583,112,356.20 × 377,979,890.55
  4. Step 4: Simplify right side
    388,741,570.80x = 220,404,744,574,828,640
  5. Step 5: Solve for x
    x = 220,404,744,574,828,640/388,741,570.80
  6. Step 6: Final answer
    x = 566,969,835.83

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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.