Home / 256,634,799.32-384,798,468.66-81,682,263.08

Finding the Fourth Proportional to 256,634,799.32, 384,798,468.66 and 81,682,263.08

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Solution

The fourth proportional to 256,634,799.32, 384,798,468.66 and 81,682,263.08 is: 122,474,465.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,634,799.32 : 384,798,468.66 = 81,682,263.08 : x
  2. Step 2: Convert to fraction form
    256,634,799.32/384,798,468.66 = 81,682,263.08/x
  3. Step 3: Cross multiply
    256,634,799.32x = 384,798,468.66 × 81,682,263.08
  4. Step 4: Simplify right side
    256,634,799.32x = 31,431,209,749,867,256
  5. Step 5: Solve for x
    x = 31,431,209,749,867,256/256,634,799.32
  6. Step 6: Final answer
    x = 122,474,465.01

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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.