Home / 990,088,507.28-1,366,242,153-572,427,708.32

Finding the Fourth Proportional to 990,088,507.28, 1,366,242,153 and 572,427,708.32

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Solution

The fourth proportional to 990,088,507.28, 1,366,242,153 and 572,427,708.32 is: 789,903,992.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,088,507.28 : 1,366,242,153 = 572,427,708.32 : x
  2. Step 2: Convert to fraction form
    990,088,507.28/1,366,242,153 = 572,427,708.32/x
  3. Step 3: Cross multiply
    990,088,507.28x = 1,366,242,153 × 572,427,708.32
  4. Step 4: Simplify right side
    990,088,507.28x = 782,074,864,651,972,864
  5. Step 5: Solve for x
    x = 782,074,864,651,972,864/990,088,507.28
  6. Step 6: Final answer
    x = 789,903,992.32

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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.