Home / 78,725,960.90-118,080,968.21-21,224,044.70

Finding the Fourth Proportional to 78,725,960.90, 118,080,968.21 and 21,224,044.70

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Solution

The fourth proportional to 78,725,960.90, 118,080,968.21 and 21,224,044.70 is: 31,833,917.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,725,960.90 : 118,080,968.21 = 21,224,044.70 : x
  2. Step 2: Convert to fraction form
    78,725,960.90/118,080,968.21 = 21,224,044.70/x
  3. Step 3: Cross multiply
    78,725,960.90x = 118,080,968.21 × 21,224,044.70
  4. Step 4: Simplify right side
    78,725,960.90x = 2,506,155,747,402,198.50
  5. Step 5: Solve for x
    x = 2,506,155,747,402,198.50/78,725,960.90
  6. Step 6: Final answer
    x = 31,833,917.54

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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.