Home / 786,996,010.80-1,181,249,843.40-672,110,276.40

Finding the Fourth Proportional to 786,996,010.80, 1,181,249,843.40 and 672,110,276.40

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Solution

The fourth proportional to 786,996,010.80, 1,181,249,843.40 and 672,110,276.40 is: 1,008,810,906.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,996,010.80 : 1,181,249,843.40 = 672,110,276.40 : x
  2. Step 2: Convert to fraction form
    786,996,010.80/1,181,249,843.40 = 672,110,276.40/x
  3. Step 3: Cross multiply
    786,996,010.80x = 1,181,249,843.40 × 672,110,276.40
  4. Step 4: Simplify right side
    786,996,010.80x = 793,930,158,745,030,784
  5. Step 5: Solve for x
    x = 793,930,158,745,030,784/786,996,010.80
  6. Step 6: Final answer
    x = 1,008,810,906.09

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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.