Home / 30,726,986.88-42,402,740.26-16,788,042

Finding the Fourth Proportional to 30,726,986.88, 42,402,740.26 and 16,788,042

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Solution

The fourth proportional to 30,726,986.88, 42,402,740.26 and 16,788,042 is: 23,167,223.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,726,986.88 : 42,402,740.26 = 16,788,042 : x
  2. Step 2: Convert to fraction form
    30,726,986.88/42,402,740.26 = 16,788,042/x
  3. Step 3: Cross multiply
    30,726,986.88x = 42,402,740.26 × 16,788,042
  4. Step 4: Simplify right side
    30,726,986.88x = 711,858,984,399,970.88
  5. Step 5: Solve for x
    x = 711,858,984,399,970.88/30,726,986.88
  6. Step 6: Final answer
    x = 23,167,223.89

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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.