Home / 385,561,050.39-532,059,326.51-209,345,012.55

Finding the Fourth Proportional to 385,561,050.39, 532,059,326.51 and 209,345,012.55

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Solution

The fourth proportional to 385,561,050.39, 532,059,326.51 and 209,345,012.55 is: 288,888,014.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,561,050.39 : 532,059,326.51 = 209,345,012.55 : x
  2. Step 2: Convert to fraction form
    385,561,050.39/532,059,326.51 = 209,345,012.55/x
  3. Step 3: Cross multiply
    385,561,050.39x = 532,059,326.51 × 209,345,012.55
  4. Step 4: Simplify right side
    385,561,050.39x = 111,383,966,384,533,776
  5. Step 5: Solve for x
    x = 111,383,966,384,533,776/385,561,050.39
  6. Step 6: Final answer
    x = 288,888,014.68

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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.