Home / 256,121,820.79-384,125,232.22-117,814,595.78

Finding the Fourth Proportional to 256,121,820.79, 384,125,232.22 and 117,814,595.78

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Solution

The fourth proportional to 256,121,820.79, 384,125,232.22 and 117,814,595.78 is: 176,695,444.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,121,820.79 : 384,125,232.22 = 117,814,595.78 : x
  2. Step 2: Convert to fraction form
    256,121,820.79/384,125,232.22 = 117,814,595.78/x
  3. Step 3: Cross multiply
    256,121,820.79x = 384,125,232.22 × 117,814,595.78
  4. Step 4: Simplify right side
    256,121,820.79x = 45,255,558,963,563,704
  5. Step 5: Solve for x
    x = 45,255,558,963,563,704/256,121,820.79
  6. Step 6: Final answer
    x = 176,695,444.47

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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.