Home / 71,421,663.94-107,146,285.35-30,480,505.54

Finding the Fourth Proportional to 71,421,663.94, 107,146,285.35 and 30,480,505.54

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Solution

The fourth proportional to 71,421,663.94, 107,146,285.35 and 30,480,505.54 is: 45,726,643.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,421,663.94 : 107,146,285.35 = 30,480,505.54 : x
  2. Step 2: Convert to fraction form
    71,421,663.94/107,146,285.35 = 30,480,505.54/x
  3. Step 3: Cross multiply
    71,421,663.94x = 107,146,285.35 × 30,480,505.54
  4. Step 4: Simplify right side
    71,421,663.94x = 3,265,872,944,201,095.50
  5. Step 5: Solve for x
    x = 3,265,872,944,201,095.50/71,421,663.94
  6. Step 6: Final answer
    x = 45,726,643.21

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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.