Home / 147,186,259.65-203,118,400.24-81,109,122.39

Finding the Fourth Proportional to 147,186,259.65, 203,118,400.24 and 81,109,122.39

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Solution

The fourth proportional to 147,186,259.65, 203,118,400.24 and 81,109,122.39 is: 111,931,339.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,186,259.65 : 203,118,400.24 = 81,109,122.39 : x
  2. Step 2: Convert to fraction form
    147,186,259.65/203,118,400.24 = 81,109,122.39/x
  3. Step 3: Cross multiply
    147,186,259.65x = 203,118,400.24 × 81,109,122.39
  4. Step 4: Simplify right side
    147,186,259.65x = 16,474,755,184,524,394
  5. Step 5: Solve for x
    x = 16,474,755,184,524,394/147,186,259.65
  6. Step 6: Final answer
    x = 111,931,339.40

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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.