Home / 256,832,122.86-385,248,449.16-120,517,637.58

Finding the Fourth Proportional to 256,832,122.86, 385,248,449.16 and 120,517,637.58

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Solution

The fourth proportional to 256,832,122.86, 385,248,449.16 and 120,517,637.58 is: 180,776,580.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,832,122.86 : 385,248,449.16 = 120,517,637.58 : x
  2. Step 2: Convert to fraction form
    256,832,122.86/385,248,449.16 = 120,517,637.58/x
  3. Step 3: Cross multiply
    256,832,122.86x = 385,248,449.16 × 120,517,637.58
  4. Step 4: Simplify right side
    256,832,122.86x = 46,429,232,974,121,936
  5. Step 5: Solve for x
    x = 46,429,232,974,121,936/256,832,122.86
  6. Step 6: Final answer
    x = 180,776,580.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.