Home / 30,886,308.15-42,623,088.78-16,947,754.80

Finding the Fourth Proportional to 30,886,308.15, 42,623,088.78 and 16,947,754.80

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Solution

The fourth proportional to 30,886,308.15, 42,623,088.78 and 16,947,754.80 is: 23,387,892.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,886,308.15 : 42,623,088.78 = 16,947,754.80 : x
  2. Step 2: Convert to fraction form
    30,886,308.15/42,623,088.78 = 16,947,754.80/x
  3. Step 3: Cross multiply
    30,886,308.15x = 42,623,088.78 × 16,947,754.80
  4. Step 4: Simplify right side
    30,886,308.15x = 722,365,657,462,071.25
  5. Step 5: Solve for x
    x = 722,365,657,462,071.25/30,886,308.15
  6. Step 6: Final answer
    x = 23,387,892.59

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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.