Home / 342,138,638.80-512,074,217.40-314,928,859.60

Finding the Fourth Proportional to 342,138,638.80, 512,074,217.40 and 314,928,859.60

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Solution

The fourth proportional to 342,138,638.80, 512,074,217.40 and 314,928,859.60 is: 471,349,713.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,138,638.80 : 512,074,217.40 = 314,928,859.60 : x
  2. Step 2: Convert to fraction form
    342,138,638.80/512,074,217.40 = 314,928,859.60/x
  3. Step 3: Cross multiply
    342,138,638.80x = 512,074,217.40 × 314,928,859.60
  4. Step 4: Simplify right side
    342,138,638.80x = 161,266,949,316,344,480
  5. Step 5: Solve for x
    x = 161,266,949,316,344,480/342,138,638.80
  6. Step 6: Final answer
    x = 471,349,713.33

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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.