Home / 72,921,259.18-100,631,112.48-39,430,503.84

Finding the Fourth Proportional to 72,921,259.18, 100,631,112.48 and 39,430,503.84

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Solution

The fourth proportional to 72,921,259.18, 100,631,112.48 and 39,430,503.84 is: 54,413,973.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,921,259.18 : 100,631,112.48 = 39,430,503.84 : x
  2. Step 2: Convert to fraction form
    72,921,259.18/100,631,112.48 = 39,430,503.84/x
  3. Step 3: Cross multiply
    72,921,259.18x = 100,631,112.48 × 39,430,503.84
  4. Step 4: Simplify right side
    72,921,259.18x = 3,967,935,466,889,682
  5. Step 5: Solve for x
    x = 3,967,935,466,889,682/72,921,259.18
  6. Step 6: Final answer
    x = 54,413,973.53

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.