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Finding the Fourth Proportional to 42,593,968.94, 63,897,559.22 and 18,001,999.10

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Solution

The fourth proportional to 42,593,968.94, 63,897,559.22 and 18,001,999.10 is: 27,005,790.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,593,968.94 : 63,897,559.22 = 18,001,999.10 : x
  2. Step 2: Convert to fraction form
    42,593,968.94/63,897,559.22 = 18,001,999.10/x
  3. Step 3: Cross multiply
    42,593,968.94x = 63,897,559.22 × 18,001,999.10
  4. Step 4: Simplify right side
    42,593,968.94x = 1,150,283,803,775,385.50
  5. Step 5: Solve for x
    x = 1,150,283,803,775,385.50/42,593,968.94
  6. Step 6: Final answer
    x = 27,005,790.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.