Home / 72,215,754.48-99,631,587.78-47,449,280.34

Finding the Fourth Proportional to 72,215,754.48, 99,631,587.78 and 47,449,280.34

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Solution

The fourth proportional to 72,215,754.48, 99,631,587.78 and 47,449,280.34 is: 65,462,822.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,215,754.48 : 99,631,587.78 = 47,449,280.34 : x
  2. Step 2: Convert to fraction form
    72,215,754.48/99,631,587.78 = 47,449,280.34/x
  3. Step 3: Cross multiply
    72,215,754.48x = 99,631,587.78 × 47,449,280.34
  4. Step 4: Simplify right side
    72,215,754.48x = 4,727,447,139,292,539
  5. Step 5: Solve for x
    x = 4,727,447,139,292,539/72,215,754.48
  6. Step 6: Final answer
    x = 65,462,822.81

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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.