Home / 385,734,188.57-532,357,339.50-216,234,206.55

Finding the Fourth Proportional to 385,734,188.57, 532,357,339.50 and 216,234,206.55

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Solution

The fourth proportional to 385,734,188.57, 532,357,339.50 and 216,234,206.55 is: 298,427,959.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,734,188.57 : 532,357,339.50 = 216,234,206.55 : x
  2. Step 2: Convert to fraction form
    385,734,188.57/532,357,339.50 = 216,234,206.55/x
  3. Step 3: Cross multiply
    385,734,188.57x = 532,357,339.50 × 216,234,206.55
  4. Step 4: Simplify right side
    385,734,188.57x = 115,113,866,907,851,488
  5. Step 5: Solve for x
    x = 115,113,866,907,851,488/385,734,188.57
  6. Step 6: Final answer
    x = 298,427,959.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.