Home / 168,966,043.20-253,386,079.20-66,708,921.60

Finding the Fourth Proportional to 168,966,043.20, 253,386,079.20 and 66,708,921.60

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Solution

The fourth proportional to 168,966,043.20, 253,386,079.20 and 66,708,921.60 is: 100,038,515.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,966,043.20 : 253,386,079.20 = 66,708,921.60 : x
  2. Step 2: Convert to fraction form
    168,966,043.20/253,386,079.20 = 66,708,921.60/x
  3. Step 3: Cross multiply
    168,966,043.20x = 253,386,079.20 × 66,708,921.60
  4. Step 4: Simplify right side
    168,966,043.20x = 16,903,112,091,884,190
  5. Step 5: Solve for x
    x = 16,903,112,091,884,190/168,966,043.20
  6. Step 6: Final answer
    x = 100,038,515.26

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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.