Home / 647,354,358.60-971,031,537.90-238,325,872.20

Finding the Fourth Proportional to 647,354,358.60, 971,031,537.90 and 238,325,872.20

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Solution

The fourth proportional to 647,354,358.60, 971,031,537.90 and 238,325,872.20 is: 357,488,808.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,354,358.60 : 971,031,537.90 = 238,325,872.20 : x
  2. Step 2: Convert to fraction form
    647,354,358.60/971,031,537.90 = 238,325,872.20/x
  3. Step 3: Cross multiply
    647,354,358.60x = 971,031,537.90 × 238,325,872.20
  4. Step 4: Simplify right side
    647,354,358.60x = 231,421,938,203,724,832
  5. Step 5: Solve for x
    x = 231,421,938,203,724,832/647,354,358.60
  6. Step 6: Final answer
    x = 357,488,808.30

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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.