Home / 258,306,688.80-386,788,186.80-166,935,578.40

Finding the Fourth Proportional to 258,306,688.80, 386,788,186.80 and 166,935,578.40

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Solution

The fourth proportional to 258,306,688.80, 386,788,186.80 and 166,935,578.40 is: 249,969,174.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,306,688.80 : 386,788,186.80 = 166,935,578.40 : x
  2. Step 2: Convert to fraction form
    258,306,688.80/386,788,186.80 = 166,935,578.40/x
  3. Step 3: Cross multiply
    258,306,688.80x = 386,788,186.80 × 166,935,578.40
  4. Step 4: Simplify right side
    258,306,688.80x = 64,568,709,681,745,248
  5. Step 5: Solve for x
    x = 64,568,709,681,745,248/258,306,688.80
  6. Step 6: Final answer
    x = 249,969,174.17

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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.