Home / 256,371,571.02-353,792,289.33-138,899,820.90

Finding the Fourth Proportional to 256,371,571.02, 353,792,289.33 and 138,899,820.90

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Solution

The fourth proportional to 256,371,571.02, 353,792,289.33 and 138,899,820.90 is: 191,681,493.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,371,571.02 : 353,792,289.33 = 138,899,820.90 : x
  2. Step 2: Convert to fraction form
    256,371,571.02/353,792,289.33 = 138,899,820.90/x
  3. Step 3: Cross multiply
    256,371,571.02x = 353,792,289.33 × 138,899,820.90
  4. Step 4: Simplify right side
    256,371,571.02x = 49,141,685,623,737,984
  5. Step 5: Solve for x
    x = 49,141,685,623,737,984/256,371,571.02
  6. Step 6: Final answer
    x = 191,681,493.50

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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.