Home / 13,855,807.72-19,121,681.10-7,660,739.80

Finding the Fourth Proportional to 13,855,807.72, 19,121,681.10 and 7,660,739.80

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Solution

The fourth proportional to 13,855,807.72, 19,121,681.10 and 7,660,739.80 is: 10,572,189.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,855,807.72 : 19,121,681.10 = 7,660,739.80 : x
  2. Step 2: Convert to fraction form
    13,855,807.72/19,121,681.10 = 7,660,739.80/x
  3. Step 3: Cross multiply
    13,855,807.72x = 19,121,681.10 × 7,660,739.80
  4. Step 4: Simplify right side
    13,855,807.72x = 146,486,223,445,677.78
  5. Step 5: Solve for x
    x = 146,486,223,445,677.78/13,855,807.72
  6. Step 6: Final answer
    x = 10,572,189.40

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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.