Home / 388,862,621.52-583,351,932.28-143,200,367.44

Finding the Fourth Proportional to 388,862,621.52, 583,351,932.28 and 143,200,367.44

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Solution

The fourth proportional to 388,862,621.52, 583,351,932.28 and 143,200,367.44 is: 214,821,909.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,862,621.52 : 583,351,932.28 = 143,200,367.44 : x
  2. Step 2: Convert to fraction form
    388,862,621.52/583,351,932.28 = 143,200,367.44/x
  3. Step 3: Cross multiply
    388,862,621.52x = 583,351,932.28 × 143,200,367.44
  4. Step 4: Simplify right side
    388,862,621.52x = 83,536,211,049,329,984
  5. Step 5: Solve for x
    x = 83,536,211,049,329,984/388,862,621.52
  6. Step 6: Final answer
    x = 214,821,909.91

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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.