Home / 126,846,019.80-190,269,029.70-72,426,461.40

Finding the Fourth Proportional to 126,846,019.80, 190,269,029.70 and 72,426,461.40

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Solution

The fourth proportional to 126,846,019.80, 190,269,029.70 and 72,426,461.40 is: 108,639,692.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,846,019.80 : 190,269,029.70 = 72,426,461.40 : x
  2. Step 2: Convert to fraction form
    126,846,019.80/190,269,029.70 = 72,426,461.40/x
  3. Step 3: Cross multiply
    126,846,019.80x = 190,269,029.70 × 72,426,461.40
  4. Step 4: Simplify right side
    126,846,019.80x = 13,780,512,535,182,504
  5. Step 5: Solve for x
    x = 13,780,512,535,182,504/126,846,019.80
  6. Step 6: Final answer
    x = 108,639,692.10

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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.