Home / 210,130,216.80-315,195,325.20-73,815,600.30

Finding the Fourth Proportional to 210,130,216.80, 315,195,325.20 and 73,815,600.30

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Solution

The fourth proportional to 210,130,216.80, 315,195,325.20 and 73,815,600.30 is: 110,723,400.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,130,216.80 : 315,195,325.20 = 73,815,600.30 : x
  2. Step 2: Convert to fraction form
    210,130,216.80/315,195,325.20 = 73,815,600.30/x
  3. Step 3: Cross multiply
    210,130,216.80x = 315,195,325.20 × 73,815,600.30
  4. Step 4: Simplify right side
    210,130,216.80x = 23,266,332,141,391,716
  5. Step 5: Solve for x
    x = 23,266,332,141,391,716/210,130,216.80
  6. Step 6: Final answer
    x = 110,723,400.45

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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.