Home / 28,369,055.78-42,559,561.83-9,198,317.90

Finding the Fourth Proportional to 28,369,055.78, 42,559,561.83 and 9,198,317.90

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Solution

The fourth proportional to 28,369,055.78, 42,559,561.83 and 9,198,317.90 is: 13,799,415.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,369,055.78 : 42,559,561.83 = 9,198,317.90 : x
  2. Step 2: Convert to fraction form
    28,369,055.78/42,559,561.83 = 9,198,317.90/x
  3. Step 3: Cross multiply
    28,369,055.78x = 42,559,561.83 × 9,198,317.90
  4. Step 4: Simplify right side
    28,369,055.78x = 391,476,379,397,045.75
  5. Step 5: Solve for x
    x = 391,476,379,397,045.75/28,369,055.78
  6. Step 6: Final answer
    x = 13,799,415.19

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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.