Home / 71,886,663.12-99,192,509.64-40,942,887.60

Finding the Fourth Proportional to 71,886,663.12, 99,192,509.64 and 40,942,887.60

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Solution

The fourth proportional to 71,886,663.12, 99,192,509.64 and 40,942,887.60 is: 56,494,871.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,886,663.12 : 99,192,509.64 = 40,942,887.60 : x
  2. Step 2: Convert to fraction form
    71,886,663.12/99,192,509.64 = 40,942,887.60/x
  3. Step 3: Cross multiply
    71,886,663.12x = 99,192,509.64 × 40,942,887.60
  4. Step 4: Simplify right side
    71,886,663.12x = 4,061,227,772,952,436.50
  5. Step 5: Solve for x
    x = 4,061,227,772,952,436.50/71,886,663.12
  6. Step 6: Final answer
    x = 56,494,871.19

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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.