Home / 256,634,800.32-384,798,470.16-81,682,264.08

Finding the Fourth Proportional to 256,634,800.32, 384,798,470.16 and 81,682,264.08

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Solution

The fourth proportional to 256,634,800.32, 384,798,470.16 and 81,682,264.08 is: 122,474,466.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,634,800.32 : 384,798,470.16 = 81,682,264.08 : x
  2. Step 2: Convert to fraction form
    256,634,800.32/384,798,470.16 = 81,682,264.08/x
  3. Step 3: Cross multiply
    256,634,800.32x = 384,798,470.16 × 81,682,264.08
  4. Step 4: Simplify right side
    256,634,800.32x = 31,431,210,257,189,120
  5. Step 5: Solve for x
    x = 31,431,210,257,189,120/256,634,800.32
  6. Step 6: Final answer
    x = 122,474,466.51

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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.