Home / 12,771,047.20-19,156,570.80-5,194,112.80

Finding the Fourth Proportional to 12,771,047.20, 19,156,570.80 and 5,194,112.80

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Solution

The fourth proportional to 12,771,047.20, 19,156,570.80 and 5,194,112.80 is: 7,791,169.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,771,047.20 : 19,156,570.80 = 5,194,112.80 : x
  2. Step 2: Convert to fraction form
    12,771,047.20/19,156,570.80 = 5,194,112.80/x
  3. Step 3: Cross multiply
    12,771,047.20x = 19,156,570.80 × 5,194,112.80
  4. Step 4: Simplify right side
    12,771,047.20x = 99,501,389,596,386.23
  5. Step 5: Solve for x
    x = 99,501,389,596,386.23/12,771,047.20
  6. Step 6: Final answer
    x = 7,791,169.20

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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.