Home / 266,928,023.40-400,392,035.10-209,597,130.60

Finding the Fourth Proportional to 266,928,023.40, 400,392,035.10 and 209,597,130.60

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Solution

The fourth proportional to 266,928,023.40, 400,392,035.10 and 209,597,130.60 is: 314,395,695.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,928,023.40 : 400,392,035.10 = 209,597,130.60 : x
  2. Step 2: Convert to fraction form
    266,928,023.40/400,392,035.10 = 209,597,130.60/x
  3. Step 3: Cross multiply
    266,928,023.40x = 400,392,035.10 × 209,597,130.60
  4. Step 4: Simplify right side
    266,928,023.40x = 83,921,021,672,054,480
  5. Step 5: Solve for x
    x = 83,921,021,672,054,480/266,928,023.40
  6. Step 6: Final answer
    x = 314,395,695.90

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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.