Home / 265,455,174.65-398,184,021.41-81,222,356.93

Finding the Fourth Proportional to 265,455,174.65, 398,184,021.41 and 81,222,356.93

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Solution

The fourth proportional to 265,455,174.65, 398,184,021.41 and 81,222,356.93 is: 121,833,920.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,455,174.65 : 398,184,021.41 = 81,222,356.93 : x
  2. Step 2: Convert to fraction form
    265,455,174.65/398,184,021.41 = 81,222,356.93/x
  3. Step 3: Cross multiply
    265,455,174.65x = 398,184,021.41 × 81,222,356.93
  4. Step 4: Simplify right side
    265,455,174.65x = 32,341,444,708,388,748
  5. Step 5: Solve for x
    x = 32,341,444,708,388,748/265,455,174.65
  6. Step 6: Final answer
    x = 121,833,920.74

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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.