Home / 660,533,314.27-911,539,577.29-388,965,634.67

Finding the Fourth Proportional to 660,533,314.27, 911,539,577.29 and 388,965,634.67

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Solution

The fourth proportional to 660,533,314.27, 911,539,577.29 and 388,965,634.67 is: 536,774,697.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,533,314.27 : 911,539,577.29 = 388,965,634.67 : x
  2. Step 2: Convert to fraction form
    660,533,314.27/911,539,577.29 = 388,965,634.67/x
  3. Step 3: Cross multiply
    660,533,314.27x = 911,539,577.29 × 388,965,634.67
  4. Step 4: Simplify right side
    660,533,314.27x = 354,557,570,204,218,432
  5. Step 5: Solve for x
    x = 354,557,570,204,218,432/660,533,314.27
  6. Step 6: Final answer
    x = 536,774,697.88

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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.