Home / 12,953,979.20-19,430,968.80-5,377,044.80

Finding the Fourth Proportional to 12,953,979.20, 19,430,968.80 and 5,377,044.80

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Solution

The fourth proportional to 12,953,979.20, 19,430,968.80 and 5,377,044.80 is: 8,065,567.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,953,979.20 : 19,430,968.80 = 5,377,044.80 : x
  2. Step 2: Convert to fraction form
    12,953,979.20/19,430,968.80 = 5,377,044.80/x
  3. Step 3: Cross multiply
    12,953,979.20x = 19,430,968.80 × 5,377,044.80
  4. Step 4: Simplify right side
    12,953,979.20x = 104,481,189,745,002.23
  5. Step 5: Solve for x
    x = 104,481,189,745,002.23/12,953,979.20
  6. Step 6: Final answer
    x = 8,065,567.20

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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.