Home / 72,724,783.54-100,362,330.78-39,687,161.46

Finding the Fourth Proportional to 72,724,783.54, 100,362,330.78 and 39,687,161.46

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Solution

The fourth proportional to 72,724,783.54, 100,362,330.78 and 39,687,161.46 is: 54,769,444.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,724,783.54 : 100,362,330.78 = 39,687,161.46 : x
  2. Step 2: Convert to fraction form
    72,724,783.54/100,362,330.78 = 39,687,161.46/x
  3. Step 3: Cross multiply
    72,724,783.54x = 100,362,330.78 × 39,687,161.46
  4. Step 4: Simplify right side
    72,724,783.54x = 3,983,096,026,167,788
  5. Step 5: Solve for x
    x = 3,983,096,026,167,788/72,724,783.54
  6. Step 6: Final answer
    x = 54,769,444.92

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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.