Home / 1,175,167,435.78-1,621,730,987.28-646,520,080.84

Finding the Fourth Proportional to 1,175,167,435.78, 1,621,730,987.28 and 646,520,080.84

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Solution

The fourth proportional to 1,175,167,435.78, 1,621,730,987.28 and 646,520,080.84 is: 892,197,670.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,175,167,435.78 : 1,621,730,987.28 = 646,520,080.84 : x
  2. Step 2: Convert to fraction form
    1,175,167,435.78/1,621,730,987.28 = 646,520,080.84/x
  3. Step 3: Cross multiply
    1,175,167,435.78x = 1,621,730,987.28 × 646,520,080.84
  4. Step 4: Simplify right side
    1,175,167,435.78x = 1,048,481,648,996,998,656
  5. Step 5: Solve for x
    x = 1,048,481,648,996,998,656/1,175,167,435.78
  6. Step 6: Final answer
    x = 892,197,670.79

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Double scale
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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.