Home / 71,748,043.52-99,015,435.54-40,388,116.07

Finding the Fourth Proportional to 71,748,043.52, 99,015,435.54 and 40,388,116.07

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Solution

The fourth proportional to 71,748,043.52, 99,015,435.54 and 40,388,116.07 is: 55,737,365.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,748,043.52 : 99,015,435.54 = 40,388,116.07 : x
  2. Step 2: Convert to fraction form
    71,748,043.52/99,015,435.54 = 40,388,116.07/x
  3. Step 3: Cross multiply
    71,748,043.52x = 99,015,435.54 × 40,388,116.07
  4. Step 4: Simplify right side
    71,748,043.52x = 3,999,046,903,558,662
  5. Step 5: Solve for x
    x = 3,999,046,903,558,662/71,748,043.52
  6. Step 6: Final answer
    x = 55,737,365.20

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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.