Home / 260,723,114.70-391,084,672.05-256,692,036.30

Finding the Fourth Proportional to 260,723,114.70, 391,084,672.05 and 256,692,036.30

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Solution

The fourth proportional to 260,723,114.70, 391,084,672.05 and 256,692,036.30 is: 385,038,054.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,723,114.70 : 391,084,672.05 = 256,692,036.30 : x
  2. Step 2: Convert to fraction form
    260,723,114.70/391,084,672.05 = 256,692,036.30/x
  3. Step 3: Cross multiply
    260,723,114.70x = 391,084,672.05 × 256,692,036.30
  4. Step 4: Simplify right side
    260,723,114.70x = 100,388,320,834,232,208
  5. Step 5: Solve for x
    x = 100,388,320,834,232,208/260,723,114.70
  6. Step 6: Final answer
    x = 385,038,054.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.