Home / 709,168,104.93-978,913,141.26-426,923,669.73

Finding the Fourth Proportional to 709,168,104.93, 978,913,141.26 and 426,923,669.73

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Solution

The fourth proportional to 709,168,104.93, 978,913,141.26 and 426,923,669.73 is: 589,311,882.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,168,104.93 : 978,913,141.26 = 426,923,669.73 : x
  2. Step 2: Convert to fraction form
    709,168,104.93/978,913,141.26 = 426,923,669.73/x
  3. Step 3: Cross multiply
    709,168,104.93x = 978,913,141.26 × 426,923,669.73
  4. Step 4: Simplify right side
    709,168,104.93x = 417,921,190,613,641,088
  5. Step 5: Solve for x
    x = 417,921,190,613,641,088/709,168,104.93
  6. Step 6: Final answer
    x = 589,311,882.06

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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.