Home / 28,999,991.69-40,010,194.87-16,439,699.66

Finding the Fourth Proportional to 28,999,991.69, 40,010,194.87 and 16,439,699.66

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Solution

The fourth proportional to 28,999,991.69, 40,010,194.87 and 16,439,699.66 is: 22,681,233.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,999,991.69 : 40,010,194.87 = 16,439,699.66 : x
  2. Step 2: Convert to fraction form
    28,999,991.69/40,010,194.87 = 16,439,699.66/x
  3. Step 3: Cross multiply
    28,999,991.69x = 40,010,194.87 × 16,439,699.66
  4. Step 4: Simplify right side
    28,999,991.69x = 657,755,587,152,019.12
  5. Step 5: Solve for x
    x = 657,755,587,152,019.12/28,999,991.69
  6. Step 6: Final answer
    x = 22,681,233.64

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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.