Home / 385,746,320.04-532,329,517.10-209,534,455.32

Finding the Fourth Proportional to 385,746,320.04, 532,329,517.10 and 209,534,455.32

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Solution

The fourth proportional to 385,746,320.04, 532,329,517.10 and 209,534,455.32 is: 289,157,328.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,746,320.04 : 532,329,517.10 = 209,534,455.32 : x
  2. Step 2: Convert to fraction form
    385,746,320.04/532,329,517.10 = 209,534,455.32/x
  3. Step 3: Cross multiply
    385,746,320.04x = 532,329,517.10 × 209,534,455.32
  4. Step 4: Simplify right side
    385,746,320.04x = 111,541,375,416,307,120
  5. Step 5: Solve for x
    x = 111,541,375,416,307,120/385,746,320.04
  6. Step 6: Final answer
    x = 289,157,328.59

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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.