Home / 78,725,967.06-118,080,977.45-21,224,050.86

Finding the Fourth Proportional to 78,725,967.06, 118,080,977.45 and 21,224,050.86

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Solution

The fourth proportional to 78,725,967.06, 118,080,977.45 and 21,224,050.86 is: 31,833,926.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,725,967.06 : 118,080,977.45 = 21,224,050.86 : x
  2. Step 2: Convert to fraction form
    78,725,967.06/118,080,977.45 = 21,224,050.86/x
  3. Step 3: Cross multiply
    78,725,967.06x = 118,080,977.45 × 21,224,050.86
  4. Step 4: Simplify right side
    78,725,967.06x = 2,506,156,670,891,192.50
  5. Step 5: Solve for x
    x = 2,506,156,670,891,192.50/78,725,967.06
  6. Step 6: Final answer
    x = 31,833,926.78

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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.