Home / 426,403,272.10-640,083,205.05-329,787,298.30

Finding the Fourth Proportional to 426,403,272.10, 640,083,205.05 and 329,787,298.30

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Solution

The fourth proportional to 426,403,272.10, 640,083,205.05 and 329,787,298.30 is: 495,050,870.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,403,272.10 : 640,083,205.05 = 329,787,298.30 : x
  2. Step 2: Convert to fraction form
    426,403,272.10/640,083,205.05 = 329,787,298.30/x
  3. Step 3: Cross multiply
    426,403,272.10x = 640,083,205.05 × 329,787,298.30
  4. Step 4: Simplify right side
    426,403,272.10x = 211,091,310,880,644,416
  5. Step 5: Solve for x
    x = 211,091,310,880,644,416/426,403,272.10
  6. Step 6: Final answer
    x = 495,050,870.13

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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.