Home / 312,115,931.20-468,173,896.80-292,984,055.20

Finding the Fourth Proportional to 312,115,931.20, 468,173,896.80 and 292,984,055.20

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Solution

The fourth proportional to 312,115,931.20, 468,173,896.80 and 292,984,055.20 is: 439,476,082.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,115,931.20 : 468,173,896.80 = 292,984,055.20 : x
  2. Step 2: Convert to fraction form
    312,115,931.20/468,173,896.80 = 292,984,055.20/x
  3. Step 3: Cross multiply
    312,115,931.20x = 468,173,896.80 × 292,984,055.20
  4. Step 4: Simplify right side
    312,115,931.20x = 137,167,486,823,250,304
  5. Step 5: Solve for x
    x = 137,167,486,823,250,304/312,115,931.20
  6. Step 6: Final answer
    x = 439,476,082.80

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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.