Home / 207,348,762.40-311,023,143.60-125,985,145.30

Finding the Fourth Proportional to 207,348,762.40, 311,023,143.60 and 125,985,145.30

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Solution

The fourth proportional to 207,348,762.40, 311,023,143.60 and 125,985,145.30 is: 188,977,717.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,348,762.40 : 311,023,143.60 = 125,985,145.30 : x
  2. Step 2: Convert to fraction form
    207,348,762.40/311,023,143.60 = 125,985,145.30/x
  3. Step 3: Cross multiply
    207,348,762.40x = 311,023,143.60 × 125,985,145.30
  4. Step 4: Simplify right side
    207,348,762.40x = 39,184,295,938,108,768
  5. Step 5: Solve for x
    x = 39,184,295,938,108,768/207,348,762.40
  6. Step 6: Final answer
    x = 188,977,717.95

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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.