Home / 749,138,775.10-1,122,952,335.45-340,488,202.30

Finding the Fourth Proportional to 749,138,775.10, 1,122,952,335.45 and 340,488,202.30

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Solution

The fourth proportional to 749,138,775.10, 1,122,952,335.45 and 340,488,202.30 is: 510,388,775.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,138,775.10 : 1,122,952,335.45 = 340,488,202.30 : x
  2. Step 2: Convert to fraction form
    749,138,775.10/1,122,952,335.45 = 340,488,202.30/x
  3. Step 3: Cross multiply
    749,138,775.10x = 1,122,952,335.45 × 340,488,202.30
  4. Step 4: Simplify right side
    749,138,775.10x = 382,352,021,965,957,120
  5. Step 5: Solve for x
    x = 382,352,021,965,957,120/749,138,775.10
  6. Step 6: Final answer
    x = 510,388,775.32

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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.