Home / 154,009,273.13-212,543,224.41-87,004,992.08

Finding the Fourth Proportional to 154,009,273.13, 212,543,224.41 and 87,004,992.08

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Solution

The fourth proportional to 154,009,273.13, 212,543,224.41 and 87,004,992.08 is: 120,072,779.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,009,273.13 : 212,543,224.41 = 87,004,992.08 : x
  2. Step 2: Convert to fraction form
    154,009,273.13/212,543,224.41 = 87,004,992.08/x
  3. Step 3: Cross multiply
    154,009,273.13x = 212,543,224.41 × 87,004,992.08
  4. Step 4: Simplify right side
    154,009,273.13x = 18,492,321,556,449,712
  5. Step 5: Solve for x
    x = 18,492,321,556,449,712/154,009,273.13
  6. Step 6: Final answer
    x = 120,072,779.91

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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.