Home / 669,362,811.20-1,004,044,216.80-238,385,787.20

Finding the Fourth Proportional to 669,362,811.20, 1,004,044,216.80 and 238,385,787.20

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Solution

The fourth proportional to 669,362,811.20, 1,004,044,216.80 and 238,385,787.20 is: 357,578,680.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,362,811.20 : 1,004,044,216.80 = 238,385,787.20 : x
  2. Step 2: Convert to fraction form
    669,362,811.20/1,004,044,216.80 = 238,385,787.20/x
  3. Step 3: Cross multiply
    669,362,811.20x = 1,004,044,216.80 × 238,385,787.20
  4. Step 4: Simplify right side
    669,362,811.20x = 239,349,871,005,475,456
  5. Step 5: Solve for x
    x = 239,349,871,005,475,456/669,362,811.20
  6. Step 6: Final answer
    x = 357,578,680.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.