Home / 800,317,111.10-1,200,475,666.65-664,268,215.10

Finding the Fourth Proportional to 800,317,111.10, 1,200,475,666.65 and 664,268,215.10

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Solution

The fourth proportional to 800,317,111.10, 1,200,475,666.65 and 664,268,215.10 is: 996,402,322.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,317,111.10 : 1,200,475,666.65 = 664,268,215.10 : x
  2. Step 2: Convert to fraction form
    800,317,111.10/1,200,475,666.65 = 664,268,215.10/x
  3. Step 3: Cross multiply
    800,317,111.10x = 1,200,475,666.65 × 664,268,215.10
  4. Step 4: Simplify right side
    800,317,111.10x = 797,437,828,356,578,176
  5. Step 5: Solve for x
    x = 797,437,828,356,578,176/800,317,111.10
  6. Step 6: Final answer
    x = 996,402,322.65

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Double scale
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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.