Home / 691,995,040.72-954,955,687.08-374,455,289.48

Finding the Fourth Proportional to 691,995,040.72, 954,955,687.08 and 374,455,289.48

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Solution

The fourth proportional to 691,995,040.72, 954,955,687.08 and 374,455,289.48 is: 516,749,669.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,995,040.72 : 954,955,687.08 = 374,455,289.48 : x
  2. Step 2: Convert to fraction form
    691,995,040.72/954,955,687.08 = 374,455,289.48/x
  3. Step 3: Cross multiply
    691,995,040.72x = 954,955,687.08 × 374,455,289.48
  4. Step 4: Simplify right side
    691,995,040.72x = 357,588,208,242,743,168
  5. Step 5: Solve for x
    x = 357,588,208,242,743,168/691,995,040.72
  6. Step 6: Final answer
    x = 516,749,669.00

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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.