Home / 100,710,010.80-151,065,016.20-80,554,618.80

Finding the Fourth Proportional to 100,710,010.80, 151,065,016.20 and 80,554,618.80

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Solution

The fourth proportional to 100,710,010.80, 151,065,016.20 and 80,554,618.80 is: 120,831,928.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,710,010.80 : 151,065,016.20 = 80,554,618.80 : x
  2. Step 2: Convert to fraction form
    100,710,010.80/151,065,016.20 = 80,554,618.80/x
  3. Step 3: Cross multiply
    100,710,010.80x = 151,065,016.20 × 80,554,618.80
  4. Step 4: Simplify right side
    100,710,010.80x = 12,168,984,794,006,824
  5. Step 5: Solve for x
    x = 12,168,984,794,006,824/100,710,010.80
  6. Step 6: Final answer
    x = 120,831,928.20

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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.