Home / 426,403,276.10-640,083,211.05-329,787,302.30

Finding the Fourth Proportional to 426,403,276.10, 640,083,211.05 and 329,787,302.30

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Solution

The fourth proportional to 426,403,276.10, 640,083,211.05 and 329,787,302.30 is: 495,050,876.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,403,276.10 : 640,083,211.05 = 329,787,302.30 : x
  2. Step 2: Convert to fraction form
    426,403,276.10/640,083,211.05 = 329,787,302.30/x
  3. Step 3: Cross multiply
    426,403,276.10x = 640,083,211.05 × 329,787,302.30
  4. Step 4: Simplify right side
    426,403,276.10x = 211,091,315,419,701,056
  5. Step 5: Solve for x
    x = 211,091,315,419,701,056/426,403,276.10
  6. Step 6: Final answer
    x = 495,050,876.13

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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.