Home / 410,097,978.45-565,935,192.86-221,926,278.15

Finding the Fourth Proportional to 410,097,978.45, 565,935,192.86 and 221,926,278.15

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Solution

The fourth proportional to 410,097,978.45, 565,935,192.86 and 221,926,278.15 is: 306,258,254.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,097,978.45 : 565,935,192.86 = 221,926,278.15 : x
  2. Step 2: Convert to fraction form
    410,097,978.45/565,935,192.86 = 221,926,278.15/x
  3. Step 3: Cross multiply
    410,097,978.45x = 565,935,192.86 × 221,926,278.15
  4. Step 4: Simplify right side
    410,097,978.45x = 125,595,891,025,522,256
  5. Step 5: Solve for x
    x = 125,595,891,025,522,256/410,097,978.45
  6. Step 6: Final answer
    x = 306,258,254.43

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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.