Home / 121,006,549.84-166,989,039.08-66,002,406.36

Finding the Fourth Proportional to 121,006,549.84, 166,989,039.08 and 66,002,406.36

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Solution

The fourth proportional to 121,006,549.84, 166,989,039.08 and 66,002,406.36 is: 91,083,320.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,006,549.84 : 166,989,039.08 = 66,002,406.36 : x
  2. Step 2: Convert to fraction form
    121,006,549.84/166,989,039.08 = 66,002,406.36/x
  3. Step 3: Cross multiply
    121,006,549.84x = 166,989,039.08 × 66,002,406.36
  4. Step 4: Simplify right side
    121,006,549.84x = 11,021,678,415,024,082
  5. Step 5: Solve for x
    x = 11,021,678,415,024,082/121,006,549.84
  6. Step 6: Final answer
    x = 91,083,320.94

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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.