Home / 22,187,412.65-30,621,671.12-12,768,010.05

Finding the Fourth Proportional to 22,187,412.65, 30,621,671.12 and 12,768,010.05

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Solution

The fourth proportional to 22,187,412.65, 30,621,671.12 and 12,768,010.05 is: 17,621,604.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,187,412.65 : 30,621,671.12 = 12,768,010.05 : x
  2. Step 2: Convert to fraction form
    22,187,412.65/30,621,671.12 = 12,768,010.05/x
  3. Step 3: Cross multiply
    22,187,412.65x = 30,621,671.12 × 12,768,010.05
  4. Step 4: Simplify right side
    22,187,412.65x = 390,977,804,544,114.69
  5. Step 5: Solve for x
    x = 390,977,804,544,114.69/22,187,412.65
  6. Step 6: Final answer
    x = 17,621,604.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.