Home / 72,147,212.72-99,645,896.49-47,477,532.30

Finding the Fourth Proportional to 72,147,212.72, 99,645,896.49 and 47,477,532.30

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Solution

The fourth proportional to 72,147,212.72, 99,645,896.49 and 47,477,532.30 is: 65,573,444.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,147,212.72 : 99,645,896.49 = 47,477,532.30 : x
  2. Step 2: Convert to fraction form
    72,147,212.72/99,645,896.49 = 47,477,532.30/x
  3. Step 3: Cross multiply
    72,147,212.72x = 99,645,896.49 × 47,477,532.30
  4. Step 4: Simplify right side
    72,147,212.72x = 4,730,941,269,166,431
  5. Step 5: Solve for x
    x = 4,730,941,269,166,431/72,147,212.72
  6. Step 6: Final answer
    x = 65,573,444.78

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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.