Home / 109,132,080.60-163,698,120.90-66,085,359.60

Finding the Fourth Proportional to 109,132,080.60, 163,698,120.90 and 66,085,359.60

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Solution

The fourth proportional to 109,132,080.60, 163,698,120.90 and 66,085,359.60 is: 99,128,039.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,132,080.60 : 163,698,120.90 = 66,085,359.60 : x
  2. Step 2: Convert to fraction form
    109,132,080.60/163,698,120.90 = 66,085,359.60/x
  3. Step 3: Cross multiply
    109,132,080.60x = 163,698,120.90 × 66,085,359.60
  4. Step 4: Simplify right side
    109,132,080.60x = 10,818,049,185,520,776
  5. Step 5: Solve for x
    x = 10,818,049,185,520,776/109,132,080.60
  6. Step 6: Final answer
    x = 99,128,039.40

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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.