Home / 289,165,742.03-399,055,657.05-157,012,308.56

Finding the Fourth Proportional to 289,165,742.03, 399,055,657.05 and 157,012,308.56

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Solution

The fourth proportional to 289,165,742.03, 399,055,657.05 and 157,012,308.56 is: 216,680,750.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,165,742.03 : 399,055,657.05 = 157,012,308.56 : x
  2. Step 2: Convert to fraction form
    289,165,742.03/399,055,657.05 = 157,012,308.56/x
  3. Step 3: Cross multiply
    289,165,742.03x = 399,055,657.05 × 157,012,308.56
  4. Step 4: Simplify right side
    289,165,742.03x = 62,656,649,958,345,784
  5. Step 5: Solve for x
    x = 62,656,649,958,345,784/289,165,742.03
  6. Step 6: Final answer
    x = 216,680,750.35

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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.