Home / 1,133,139,621.90-1,699,709,432.85-672,840,857.10

Finding the Fourth Proportional to 1,133,139,621.90, 1,699,709,432.85 and 672,840,857.10

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Solution

The fourth proportional to 1,133,139,621.90, 1,699,709,432.85 and 672,840,857.10 is: 1,009,261,285.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,133,139,621.90 : 1,699,709,432.85 = 672,840,857.10 : x
  2. Step 2: Convert to fraction form
    1,133,139,621.90/1,699,709,432.85 = 672,840,857.10/x
  3. Step 3: Cross multiply
    1,133,139,621.90x = 1,699,709,432.85 × 672,840,857.10
  4. Step 4: Simplify right side
    1,133,139,621.90x = 1,143,633,951,619,748,864
  5. Step 5: Solve for x
    x = 1,143,633,951,619,748,864/1,133,139,621.90
  6. Step 6: Final answer
    x = 1,009,261,285.65

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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.