Home / 64,942,308-89,586,407.10-40,154,571.21

Finding the Fourth Proportional to 64,942,308, 89,586,407.10 and 40,154,571.21

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Solution

The fourth proportional to 64,942,308, 89,586,407.10 and 40,154,571.21 is: 55,392,299.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,942,308 : 89,586,407.10 = 40,154,571.21 : x
  2. Step 2: Convert to fraction form
    64,942,308/89,586,407.10 = 40,154,571.21/x
  3. Step 3: Cross multiply
    64,942,308x = 89,586,407.10 × 40,154,571.21
  4. Step 4: Simplify right side
    64,942,308x = 3,597,303,763,344,999.50
  5. Step 5: Solve for x
    x = 3,597,303,763,344,999.50/64,942,308
  6. Step 6: Final answer
    x = 55,392,299.32

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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.