Home / 256,038,287.22-353,332,833.05-138,563,617.47

Finding the Fourth Proportional to 256,038,287.22, 353,332,833.05 and 138,563,617.47

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Solution

The fourth proportional to 256,038,287.22, 353,332,833.05 and 138,563,617.47 is: 191,217,790.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,038,287.22 : 353,332,833.05 = 138,563,617.47 : x
  2. Step 2: Convert to fraction form
    256,038,287.22/353,332,833.05 = 138,563,617.47/x
  3. Step 3: Cross multiply
    256,038,287.22x = 353,332,833.05 × 138,563,617.47
  4. Step 4: Simplify right side
    256,038,287.22x = 48,959,075,517,638,760
  5. Step 5: Solve for x
    x = 48,959,075,517,638,760/256,038,287.22
  6. Step 6: Final answer
    x = 191,217,790.31

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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.