Home / 72,004,025-99,365,816.40-38,964,270.80

Finding the Fourth Proportional to 72,004,025, 99,365,816.40 and 38,964,270.80

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Solution

The fourth proportional to 72,004,025, 99,365,816.40 and 38,964,270.80 is: 53,770,835.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,004,025 : 99,365,816.40 = 38,964,270.80 : x
  2. Step 2: Convert to fraction form
    72,004,025/99,365,816.40 = 38,964,270.80/x
  3. Step 3: Cross multiply
    72,004,025x = 99,365,816.40 × 38,964,270.80
  4. Step 4: Simplify right side
    72,004,025x = 3,871,716,578,472,681
  5. Step 5: Solve for x
    x = 3,871,716,578,472,681/72,004,025
  6. Step 6: Final answer
    x = 53,770,835.43

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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.