Home / 370,278,902.72-555,510,825.84-261,316,887.32

Finding the Fourth Proportional to 370,278,902.72, 555,510,825.84 and 261,316,887.32

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Solution

The fourth proportional to 370,278,902.72, 555,510,825.84 and 261,316,887.32 is: 392,040,591.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,278,902.72 : 555,510,825.84 = 261,316,887.32 : x
  2. Step 2: Convert to fraction form
    370,278,902.72/555,510,825.84 = 261,316,887.32/x
  3. Step 3: Cross multiply
    370,278,902.72x = 555,510,825.84 × 261,316,887.32
  4. Step 4: Simplify right side
    370,278,902.72x = 145,164,359,881,071,424
  5. Step 5: Solve for x
    x = 145,164,359,881,071,424/370,278,902.72
  6. Step 6: Final answer
    x = 392,040,591.06

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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.