Home / 1,171,496,791.16-1,616,690,263.56-642,856,152.32

Finding the Fourth Proportional to 1,171,496,791.16, 1,616,690,263.56 and 642,856,152.32

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Solution

The fourth proportional to 1,171,496,791.16, 1,616,690,263.56 and 642,856,152.32 is: 887,155,039.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,171,496,791.16 : 1,616,690,263.56 = 642,856,152.32 : x
  2. Step 2: Convert to fraction form
    1,171,496,791.16/1,616,690,263.56 = 642,856,152.32/x
  3. Step 3: Cross multiply
    1,171,496,791.16x = 1,616,690,263.56 × 642,856,152.32
  4. Step 4: Simplify right side
    1,171,496,791.16x = 1,039,299,282,325,388,416
  5. Step 5: Solve for x
    x = 1,039,299,282,325,388,416/1,171,496,791.16
  6. Step 6: Final answer
    x = 887,155,039.75

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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.