Home / 78,883,616.60-118,269,437.70-30,342,714.20

Finding the Fourth Proportional to 78,883,616.60, 118,269,437.70 and 30,342,714.20

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Solution

The fourth proportional to 78,883,616.60, 118,269,437.70 and 30,342,714.20 is: 45,492,535.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,883,616.60 : 118,269,437.70 = 30,342,714.20 : x
  2. Step 2: Convert to fraction form
    78,883,616.60/118,269,437.70 = 30,342,714.20/x
  3. Step 3: Cross multiply
    78,883,616.60x = 118,269,437.70 × 30,342,714.20
  4. Step 4: Simplify right side
    78,883,616.60x = 3,588,615,746,725,805.50
  5. Step 5: Solve for x
    x = 3,588,615,746,725,805.50/78,883,616.60
  6. Step 6: Final answer
    x = 45,492,535.73

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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.