Home / 640,617,002.60-960,925,503.90-435,032,004.20

Finding the Fourth Proportional to 640,617,002.60, 960,925,503.90 and 435,032,004.20

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Solution

The fourth proportional to 640,617,002.60, 960,925,503.90 and 435,032,004.20 is: 652,548,006.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,617,002.60 : 960,925,503.90 = 435,032,004.20 : x
  2. Step 2: Convert to fraction form
    640,617,002.60/960,925,503.90 = 435,032,004.20/x
  3. Step 3: Cross multiply
    640,617,002.60x = 960,925,503.90 × 435,032,004.20
  4. Step 4: Simplify right side
    640,617,002.60x = 418,033,347,848,511,872
  5. Step 5: Solve for x
    x = 418,033,347,848,511,872/640,617,002.60
  6. Step 6: Final answer
    x = 652,548,006.30

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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.