Home / 228,778,542.81-343,170,208.98-90,637,770.38

Finding the Fourth Proportional to 228,778,542.81, 343,170,208.98 and 90,637,770.38

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Solution

The fourth proportional to 228,778,542.81, 343,170,208.98 and 90,637,770.38 is: 135,957,604.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,778,542.81 : 343,170,208.98 = 90,637,770.38 : x
  2. Step 2: Convert to fraction form
    228,778,542.81/343,170,208.98 = 90,637,770.38/x
  3. Step 3: Cross multiply
    228,778,542.81x = 343,170,208.98 × 90,637,770.38
  4. Step 4: Simplify right side
    228,778,542.81x = 31,104,182,601,070,004
  5. Step 5: Solve for x
    x = 31,104,182,601,070,004/228,778,542.81
  6. Step 6: Final answer
    x = 135,957,604.32

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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.