Home / 645,142,276.62-967,719,015.36-208,443,007.44

Finding the Fourth Proportional to 645,142,276.62, 967,719,015.36 and 208,443,007.44

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Solution

The fourth proportional to 645,142,276.62, 967,719,015.36 and 208,443,007.44 is: 312,666,320.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,142,276.62 : 967,719,015.36 = 208,443,007.44 : x
  2. Step 2: Convert to fraction form
    645,142,276.62/967,719,015.36 = 208,443,007.44/x
  3. Step 3: Cross multiply
    645,142,276.62x = 967,719,015.36 × 208,443,007.44
  4. Step 4: Simplify right side
    645,142,276.62x = 201,714,261,918,513,952
  5. Step 5: Solve for x
    x = 201,714,261,918,513,952/645,142,276.62
  6. Step 6: Final answer
    x = 312,666,320.64

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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.