Home / 100,724,821.20-151,087,231.80-70,113,819.60

Finding the Fourth Proportional to 100,724,821.20, 151,087,231.80 and 70,113,819.60

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Solution

The fourth proportional to 100,724,821.20, 151,087,231.80 and 70,113,819.60 is: 105,170,729.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,724,821.20 : 151,087,231.80 = 70,113,819.60 : x
  2. Step 2: Convert to fraction form
    100,724,821.20/151,087,231.80 = 70,113,819.60/x
  3. Step 3: Cross multiply
    100,724,821.20x = 151,087,231.80 × 70,113,819.60
  4. Step 4: Simplify right side
    100,724,821.20x = 10,593,302,914,288,584
  5. Step 5: Solve for x
    x = 10,593,302,914,288,584/100,724,821.20
  6. Step 6: Final answer
    x = 105,170,729.40

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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.