Home / 72,401,949.12-99,913,809.12-53,899,753.92

Finding the Fourth Proportional to 72,401,949.12, 99,913,809.12 and 53,899,753.92

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Solution

The fourth proportional to 72,401,949.12, 99,913,809.12 and 53,899,753.92 is: 74,381,004.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,401,949.12 : 99,913,809.12 = 53,899,753.92 : x
  2. Step 2: Convert to fraction form
    72,401,949.12/99,913,809.12 = 53,899,753.92/x
  3. Step 3: Cross multiply
    72,401,949.12x = 99,913,809.12 × 53,899,753.92
  4. Step 4: Simplify right side
    72,401,949.12x = 5,385,329,724,777,852
  5. Step 5: Solve for x
    x = 5,385,329,724,777,852/72,401,949.12
  6. Step 6: Final answer
    x = 74,381,004.80

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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.