Home / 86,092,121.34-129,212,803.90-45,180,464.56

Finding the Fourth Proportional to 86,092,121.34, 129,212,803.90 and 45,180,464.56

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Solution

The fourth proportional to 86,092,121.34, 129,212,803.90 and 45,180,464.56 is: 67,809,857.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,092,121.34 : 129,212,803.90 = 45,180,464.56 : x
  2. Step 2: Convert to fraction form
    86,092,121.34/129,212,803.90 = 45,180,464.56/x
  3. Step 3: Cross multiply
    86,092,121.34x = 129,212,803.90 × 45,180,464.56
  4. Step 4: Simplify right side
    86,092,121.34x = 5,837,894,506,866,196
  5. Step 5: Solve for x
    x = 5,837,894,506,866,196/86,092,121.34
  6. Step 6: Final answer
    x = 67,809,857.81

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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.