Home / 72,001,439.46-99,362,249.78-38,961,688.91

Finding the Fourth Proportional to 72,001,439.46, 99,362,249.78 and 38,961,688.91

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Solution

The fourth proportional to 72,001,439.46, 99,362,249.78 and 38,961,688.91 is: 53,767,273.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,001,439.46 : 99,362,249.78 = 38,961,688.91 : x
  2. Step 2: Convert to fraction form
    72,001,439.46/99,362,249.78 = 38,961,688.91/x
  3. Step 3: Cross multiply
    72,001,439.46x = 99,362,249.78 × 38,961,688.91
  4. Step 4: Simplify right side
    72,001,439.46x = 3,871,321,064,634,456.50
  5. Step 5: Solve for x
    x = 3,871,321,064,634,456.50/72,001,439.46
  6. Step 6: Final answer
    x = 53,767,273.18

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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.