Home / 256,014,634.72-353,301,126.12-138,539,951.58

Finding the Fourth Proportional to 256,014,634.72, 353,301,126.12 and 138,539,951.58

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Solution

The fourth proportional to 256,014,634.72, 353,301,126.12 and 138,539,951.58 is: 191,185,636.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,014,634.72 : 353,301,126.12 = 138,539,951.58 : x
  2. Step 2: Convert to fraction form
    256,014,634.72/353,301,126.12 = 138,539,951.58/x
  3. Step 3: Cross multiply
    256,014,634.72x = 353,301,126.12 × 138,539,951.58
  4. Step 4: Simplify right side
    256,014,634.72x = 48,946,320,905,824,280
  5. Step 5: Solve for x
    x = 48,946,320,905,824,280/256,014,634.72
  6. Step 6: Final answer
    x = 191,185,636.55

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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.