Home / 72,724,778.42-100,362,323.70-39,687,156.34

Finding the Fourth Proportional to 72,724,778.42, 100,362,323.70 and 39,687,156.34

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Solution

The fourth proportional to 72,724,778.42, 100,362,323.70 and 39,687,156.34 is: 54,769,437.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,724,778.42 : 100,362,323.70 = 39,687,156.34 : x
  2. Step 2: Convert to fraction form
    72,724,778.42/100,362,323.70 = 39,687,156.34/x
  3. Step 3: Cross multiply
    72,724,778.42x = 100,362,323.70 × 39,687,156.34
  4. Step 4: Simplify right side
    72,724,778.42x = 3,983,095,231,076,681.50
  5. Step 5: Solve for x
    x = 3,983,095,231,076,681.50/72,724,778.42
  6. Step 6: Final answer
    x = 54,769,437.84

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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.