Home / 10,047,021.91-13,872,700.02-7,720,246.79

Finding the Fourth Proportional to 10,047,021.91, 13,872,700.02 and 7,720,246.79

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Solution

The fourth proportional to 10,047,021.91, 13,872,700.02 and 7,720,246.79 is: 10,659,941.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,047,021.91 : 13,872,700.02 = 7,720,246.79 : x
  2. Step 2: Convert to fraction form
    10,047,021.91/13,872,700.02 = 7,720,246.79/x
  3. Step 3: Cross multiply
    10,047,021.91x = 13,872,700.02 × 7,720,246.79
  4. Step 4: Simplify right side
    10,047,021.91x = 107,100,667,709,373.83
  5. Step 5: Solve for x
    x = 107,100,667,709,373.83/10,047,021.91
  6. Step 6: Final answer
    x = 10,659,941.69

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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.