Home / 319,239,870.15-440,550,825.95-172,562,154.15

Finding the Fourth Proportional to 319,239,870.15, 440,550,825.95 and 172,562,154.15

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Solution

The fourth proportional to 319,239,870.15, 440,550,825.95 and 172,562,154.15 is: 238,135,667.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,239,870.15 : 440,550,825.95 = 172,562,154.15 : x
  2. Step 2: Convert to fraction form
    319,239,870.15/440,550,825.95 = 172,562,154.15/x
  3. Step 3: Cross multiply
    319,239,870.15x = 440,550,825.95 × 172,562,154.15
  4. Step 4: Simplify right side
    319,239,870.15x = 76,022,399,538,493,728
  5. Step 5: Solve for x
    x = 76,022,399,538,493,728/319,239,870.15
  6. Step 6: Final answer
    x = 238,135,667.40

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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.