Home / 385,856,507.14-532,486,822.76-209,647,445.22

Finding the Fourth Proportional to 385,856,507.14, 532,486,822.76 and 209,647,445.22

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Solution

The fourth proportional to 385,856,507.14, 532,486,822.76 and 209,647,445.22 is: 289,316,105.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,856,507.14 : 532,486,822.76 = 209,647,445.22 : x
  2. Step 2: Convert to fraction form
    385,856,507.14/532,486,822.76 = 209,647,445.22/x
  3. Step 3: Cross multiply
    385,856,507.14x = 532,486,822.76 × 209,647,445.22
  4. Step 4: Simplify right side
    385,856,507.14x = 111,634,502,004,948,944
  5. Step 5: Solve for x
    x = 111,634,502,004,948,944/385,856,507.14
  6. Step 6: Final answer
    x = 289,316,105.70

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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.