Home / 278,713,359.84-384,645,952.08-167,208,376.80

Finding the Fourth Proportional to 278,713,359.84, 384,645,952.08 and 167,208,376.80

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Solution

The fourth proportional to 278,713,359.84, 384,645,952.08 and 167,208,376.80 is: 230,760,467.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,713,359.84 : 384,645,952.08 = 167,208,376.80 : x
  2. Step 2: Convert to fraction form
    278,713,359.84/384,645,952.08 = 167,208,376.80/x
  3. Step 3: Cross multiply
    278,713,359.84x = 384,645,952.08 × 167,208,376.80
  4. Step 4: Simplify right side
    278,713,359.84x = 64,316,025,289,987,384
  5. Step 5: Solve for x
    x = 64,316,025,289,987,384/278,713,359.84
  6. Step 6: Final answer
    x = 230,760,467.77

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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.