Home / 256,014,331.74-353,300,709.81-138,539,651.36

Finding the Fourth Proportional to 256,014,331.74, 353,300,709.81 and 138,539,651.36

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Solution

The fourth proportional to 256,014,331.74, 353,300,709.81 and 138,539,651.36 is: 191,185,223.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,014,331.74 : 353,300,709.81 = 138,539,651.36 : x
  2. Step 2: Convert to fraction form
    256,014,331.74/353,300,709.81 = 138,539,651.36/x
  3. Step 3: Cross multiply
    256,014,331.74x = 353,300,709.81 × 138,539,651.36
  4. Step 4: Simplify right side
    256,014,331.74x = 48,946,157,160,551,424
  5. Step 5: Solve for x
    x = 48,946,157,160,551,424/256,014,331.74
  6. Step 6: Final answer
    x = 191,185,223.22

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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.