Home / 457,565,681.84-685,774,074.40-247,467,992.78

Finding the Fourth Proportional to 457,565,681.84, 685,774,074.40 and 247,467,992.78

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Solution

The fourth proportional to 457,565,681.84, 685,774,074.40 and 247,467,992.78 is: 370,891,306.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,565,681.84 : 685,774,074.40 = 247,467,992.78 : x
  2. Step 2: Convert to fraction form
    457,565,681.84/685,774,074.40 = 247,467,992.78/x
  3. Step 3: Cross multiply
    457,565,681.84x = 685,774,074.40 × 247,467,992.78
  4. Step 4: Simplify right side
    457,565,681.84x = 169,707,133,691,510,912
  5. Step 5: Solve for x
    x = 169,707,133,691,510,912/457,565,681.84
  6. Step 6: Final answer
    x = 370,891,306.82

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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.