Home / 127,747,243.80-191,620,865.70-70,209,898.20

Finding the Fourth Proportional to 127,747,243.80, 191,620,865.70 and 70,209,898.20

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Solution

The fourth proportional to 127,747,243.80, 191,620,865.70 and 70,209,898.20 is: 105,314,847.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,747,243.80 : 191,620,865.70 = 70,209,898.20 : x
  2. Step 2: Convert to fraction form
    127,747,243.80/191,620,865.70 = 70,209,898.20/x
  3. Step 3: Cross multiply
    127,747,243.80x = 191,620,865.70 × 70,209,898.20
  4. Step 4: Simplify right side
    127,747,243.80x = 13,453,681,473,792,872
  5. Step 5: Solve for x
    x = 13,453,681,473,792,872/127,747,243.80
  6. Step 6: Final answer
    x = 105,314,847.30

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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.