Home / 20,058,415.20-30,087,622.80-19,869,458.40

Finding the Fourth Proportional to 20,058,415.20, 30,087,622.80 and 19,869,458.40

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Solution

The fourth proportional to 20,058,415.20, 30,087,622.80 and 19,869,458.40 is: 29,804,187.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,058,415.20 : 30,087,622.80 = 19,869,458.40 : x
  2. Step 2: Convert to fraction form
    20,058,415.20/30,087,622.80 = 19,869,458.40/x
  3. Step 3: Cross multiply
    20,058,415.20x = 30,087,622.80 × 19,869,458.40
  4. Step 4: Simplify right side
    20,058,415.20x = 597,824,769,579,491.50
  5. Step 5: Solve for x
    x = 597,824,769,579,491.50/20,058,415.20
  6. Step 6: Final answer
    x = 29,804,187.60

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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.