Home / 72,005,108.40-99,356,360.31-43,732,768.95

Finding the Fourth Proportional to 72,005,108.40, 99,356,360.31 and 43,732,768.95

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Solution

The fourth proportional to 72,005,108.40, 99,356,360.31 and 43,732,768.95 is: 60,344,728.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,005,108.40 : 99,356,360.31 = 43,732,768.95 : x
  2. Step 2: Convert to fraction form
    72,005,108.40/99,356,360.31 = 43,732,768.95/x
  3. Step 3: Cross multiply
    72,005,108.40x = 99,356,360.31 × 43,732,768.95
  4. Step 4: Simplify right side
    72,005,108.40x = 4,345,128,749,150,181
  5. Step 5: Solve for x
    x = 4,345,128,749,150,181/72,005,108.40
  6. Step 6: Final answer
    x = 60,344,728.95

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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.