Home / 78,725,932.74-118,080,926.12-21,224,016.54

Finding the Fourth Proportional to 78,725,932.74, 118,080,926.12 and 21,224,016.54

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Solution

The fourth proportional to 78,725,932.74, 118,080,926.12 and 21,224,016.54 is: 31,833,875.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,725,932.74 : 118,080,926.12 = 21,224,016.54 : x
  2. Step 2: Convert to fraction form
    78,725,932.74/118,080,926.12 = 21,224,016.54/x
  3. Step 3: Cross multiply
    78,725,932.74x = 118,080,926.12 × 21,224,016.54
  4. Step 4: Simplify right side
    78,725,932.74x = 2,506,151,529,082,458
  5. Step 5: Solve for x
    x = 2,506,151,529,082,458/78,725,932.74
  6. Step 6: Final answer
    x = 31,833,875.34

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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.