Home / 931,360,600.72-1,397,040,902.36-378,533,507.32

Finding the Fourth Proportional to 931,360,600.72, 1,397,040,902.36 and 378,533,507.32

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Solution

The fourth proportional to 931,360,600.72, 1,397,040,902.36 and 378,533,507.32 is: 567,800,261.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,360,600.72 : 1,397,040,902.36 = 378,533,507.32 : x
  2. Step 2: Convert to fraction form
    931,360,600.72/1,397,040,902.36 = 378,533,507.32/x
  3. Step 3: Cross multiply
    931,360,600.72x = 1,397,040,902.36 × 378,533,507.32
  4. Step 4: Simplify right side
    931,360,600.72x = 528,826,792,639,828,416
  5. Step 5: Solve for x
    x = 528,826,792,639,828,416/931,360,600.72
  6. Step 6: Final answer
    x = 567,800,261.50

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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.