Home / 1,770,390,507.12-2,443,090,194.96-977,422,076.64

Finding the Fourth Proportional to 1,770,390,507.12, 2,443,090,194.96 and 977,422,076.64

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Solution

The fourth proportional to 1,770,390,507.12, 2,443,090,194.96 and 977,422,076.64 is: 1,348,815,576.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,770,390,507.12 : 2,443,090,194.96 = 977,422,076.64 : x
  2. Step 2: Convert to fraction form
    1,770,390,507.12/2,443,090,194.96 = 977,422,076.64/x
  3. Step 3: Cross multiply
    1,770,390,507.12x = 2,443,090,194.96 × 977,422,076.64
  4. Step 4: Simplify right side
    1,770,390,507.12x = 2,387,930,291,776,625,664
  5. Step 5: Solve for x
    x = 2,387,930,291,776,625,664/1,770,390,507.12
  6. Step 6: Final answer
    x = 1,348,815,576.10

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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.