Home / 30,751,608.69-42,435,088.79-16,999,490.25

Finding the Fourth Proportional to 30,751,608.69, 42,435,088.79 and 16,999,490.25

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Solution

The fourth proportional to 30,751,608.69, 42,435,088.79 and 16,999,490.25 is: 23,458,118.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,751,608.69 : 42,435,088.79 = 16,999,490.25 : x
  2. Step 2: Convert to fraction form
    30,751,608.69/42,435,088.79 = 16,999,490.25/x
  3. Step 3: Cross multiply
    30,751,608.69x = 42,435,088.79 × 16,999,490.25
  4. Step 4: Simplify right side
    30,751,608.69x = 721,374,878,058,491.75
  5. Step 5: Solve for x
    x = 721,374,878,058,491.75/30,751,608.69
  6. Step 6: Final answer
    x = 23,458,118.41

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1.5x scale

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.