Home / 268,931,165.45-371,121,235.85-149,858,776.35

Finding the Fourth Proportional to 268,931,165.45, 371,121,235.85 and 149,858,776.35

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Solution

The fourth proportional to 268,931,165.45, 371,121,235.85 and 149,858,776.35 is: 206,803,009.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,931,165.45 : 371,121,235.85 = 149,858,776.35 : x
  2. Step 2: Convert to fraction form
    268,931,165.45/371,121,235.85 = 149,858,776.35/x
  3. Step 3: Cross multiply
    268,931,165.45x = 371,121,235.85 × 149,858,776.35
  4. Step 4: Simplify right side
    268,931,165.45x = 55,615,774,281,231,464
  5. Step 5: Solve for x
    x = 55,615,774,281,231,464/268,931,165.45
  6. Step 6: Final answer
    x = 206,803,009.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.