Home / 342,138,649.80-512,074,233.90-314,928,870.60

Finding the Fourth Proportional to 342,138,649.80, 512,074,233.90 and 314,928,870.60

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Solution

The fourth proportional to 342,138,649.80, 512,074,233.90 and 314,928,870.60 is: 471,349,729.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,138,649.80 : 512,074,233.90 = 314,928,870.60 : x
  2. Step 2: Convert to fraction form
    342,138,649.80/512,074,233.90 = 314,928,870.60/x
  3. Step 3: Cross multiply
    342,138,649.80x = 512,074,233.90 × 314,928,870.60
  4. Step 4: Simplify right side
    342,138,649.80x = 161,266,960,145,487,232
  5. Step 5: Solve for x
    x = 161,266,960,145,487,232/342,138,649.80
  6. Step 6: Final answer
    x = 471,349,729.82

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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.