Home / 243,259,036.11-335,702,890.53-138,835,013.04

Finding the Fourth Proportional to 243,259,036.11, 335,702,890.53 and 138,835,013.04

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Solution

The fourth proportional to 243,259,036.11, 335,702,890.53 and 138,835,013.04 is: 191,595,411.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,259,036.11 : 335,702,890.53 = 138,835,013.04 : x
  2. Step 2: Convert to fraction form
    243,259,036.11/335,702,890.53 = 138,835,013.04/x
  3. Step 3: Cross multiply
    243,259,036.11x = 335,702,890.53 × 138,835,013.04
  4. Step 4: Simplify right side
    243,259,036.11x = 46,607,315,184,298,232
  5. Step 5: Solve for x
    x = 46,607,315,184,298,232/243,259,036.11
  6. Step 6: Final answer
    x = 191,595,411.75

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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.