Home / 156,586,871.25-216,065,861.03-90,494,606.66

Finding the Fourth Proportional to 156,586,871.25, 216,065,861.03 and 90,494,606.66

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Solution

The fourth proportional to 156,586,871.25, 216,065,861.03 and 90,494,606.66 is: 124,868,674.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,586,871.25 : 216,065,861.03 = 90,494,606.66 : x
  2. Step 2: Convert to fraction form
    156,586,871.25/216,065,861.03 = 90,494,606.66/x
  3. Step 3: Cross multiply
    156,586,871.25x = 216,065,861.03 × 90,494,606.66
  4. Step 4: Simplify right side
    156,586,871.25x = 19,552,795,105,031,272
  5. Step 5: Solve for x
    x = 19,552,795,105,031,272/156,586,871.25
  6. Step 6: Final answer
    x = 124,868,674.81

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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.