Home / 256,398,280.84-353,829,760.59-138,923,703.37

Finding the Fourth Proportional to 256,398,280.84, 353,829,760.59 and 138,923,703.37

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Solution

The fourth proportional to 256,398,280.84, 353,829,760.59 and 138,923,703.37 is: 191,714,782.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,398,280.84 : 353,829,760.59 = 138,923,703.37 : x
  2. Step 2: Convert to fraction form
    256,398,280.84/353,829,760.59 = 138,923,703.37/x
  3. Step 3: Cross multiply
    256,398,280.84x = 353,829,760.59 × 138,923,703.37
  4. Step 4: Simplify right side
    256,398,280.84x = 49,155,340,703,683,272
  5. Step 5: Solve for x
    x = 49,155,340,703,683,272/256,398,280.84
  6. Step 6: Final answer
    x = 191,714,782.73

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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.