Home / 80,851,999.80-121,277,999.70-74,616,425.40

Finding the Fourth Proportional to 80,851,999.80, 121,277,999.70 and 74,616,425.40

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Solution

The fourth proportional to 80,851,999.80, 121,277,999.70 and 74,616,425.40 is: 111,924,638.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,851,999.80 : 121,277,999.70 = 74,616,425.40 : x
  2. Step 2: Convert to fraction form
    80,851,999.80/121,277,999.70 = 74,616,425.40/x
  3. Step 3: Cross multiply
    80,851,999.80x = 121,277,999.70 × 74,616,425.40
  4. Step 4: Simplify right side
    80,851,999.80x = 9,049,330,817,276,274
  5. Step 5: Solve for x
    x = 9,049,330,817,276,274/80,851,999.80
  6. Step 6: Final answer
    x = 111,924,638.10

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1.5x scale

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.