Home / 1,133,139,620.90-1,699,709,431.35-672,840,856.10

Finding the Fourth Proportional to 1,133,139,620.90, 1,699,709,431.35 and 672,840,856.10

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Solution

The fourth proportional to 1,133,139,620.90, 1,699,709,431.35 and 672,840,856.10 is: 1,009,261,284.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,133,139,620.90 : 1,699,709,431.35 = 672,840,856.10 : x
  2. Step 2: Convert to fraction form
    1,133,139,620.90/1,699,709,431.35 = 672,840,856.10/x
  3. Step 3: Cross multiply
    1,133,139,620.90x = 1,699,709,431.35 × 672,840,856.10
  4. Step 4: Simplify right side
    1,133,139,620.90x = 1,143,633,948,910,778,112
  5. Step 5: Solve for x
    x = 1,143,633,948,910,778,112/1,133,139,620.90
  6. Step 6: Final answer
    x = 1,009,261,284.15

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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.