Home / 100,602,002.30-150,903,003.45-69,991,000.70

Finding the Fourth Proportional to 100,602,002.30, 150,903,003.45 and 69,991,000.70

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Solution

The fourth proportional to 100,602,002.30, 150,903,003.45 and 69,991,000.70 is: 104,986,501.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,602,002.30 : 150,903,003.45 = 69,991,000.70 : x
  2. Step 2: Convert to fraction form
    100,602,002.30/150,903,003.45 = 69,991,000.70/x
  3. Step 3: Cross multiply
    100,602,002.30x = 150,903,003.45 × 69,991,000.70
  4. Step 4: Simplify right side
    100,602,002.30x = 10,561,852,220,101,052
  5. Step 5: Solve for x
    x = 10,561,852,220,101,052/100,602,002.30
  6. Step 6: Final answer
    x = 104,986,501.05

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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.