Home / 115,988,942.72-160,070,486.95-71,950,130.84

Finding the Fourth Proportional to 115,988,942.72, 160,070,486.95 and 71,950,130.84

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Solution

The fourth proportional to 115,988,942.72, 160,070,486.95 and 71,950,130.84 is: 99,294,744.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,988,942.72 : 160,070,486.95 = 71,950,130.84 : x
  2. Step 2: Convert to fraction form
    115,988,942.72/160,070,486.95 = 71,950,130.84/x
  3. Step 3: Cross multiply
    115,988,942.72x = 160,070,486.95 × 71,950,130.84
  4. Step 4: Simplify right side
    115,988,942.72x = 11,517,092,480,165,126
  5. Step 5: Solve for x
    x = 11,517,092,480,165,126/115,988,942.72
  6. Step 6: Final answer
    x = 99,294,744.91

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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.