Home / 376,776,840.54-519,952,471-209,509,510.46

Finding the Fourth Proportional to 376,776,840.54, 519,952,471 and 209,509,510.46

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Solution

The fourth proportional to 376,776,840.54, 519,952,471 and 209,509,510.46 is: 289,123,364.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,776,840.54 : 519,952,471 = 209,509,510.46 : x
  2. Step 2: Convert to fraction form
    376,776,840.54/519,952,471 = 209,509,510.46/x
  3. Step 3: Cross multiply
    376,776,840.54x = 519,952,471 × 209,509,510.46
  4. Step 4: Simplify right side
    376,776,840.54x = 108,934,987,661,677,344
  5. Step 5: Solve for x
    x = 108,934,987,661,677,344/376,776,840.54
  6. Step 6: Final answer
    x = 289,123,364.13

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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.