Home / 22,152,751.76-30,571,195.56-12,992,001.68

Finding the Fourth Proportional to 22,152,751.76, 30,571,195.56 and 12,992,001.68

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Solution

The fourth proportional to 22,152,751.76, 30,571,195.56 and 12,992,001.68 is: 17,929,195.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,152,751.76 : 30,571,195.56 = 12,992,001.68 : x
  2. Step 2: Convert to fraction form
    22,152,751.76/30,571,195.56 = 12,992,001.68/x
  3. Step 3: Cross multiply
    22,152,751.76x = 30,571,195.56 × 12,992,001.68
  4. Step 4: Simplify right side
    22,152,751.76x = 397,181,024,075,128.50
  5. Step 5: Solve for x
    x = 397,181,024,075,128.50/22,152,751.76
  6. Step 6: Final answer
    x = 17,929,195.81

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1.5x scale

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.