Home / 1,539,650,665.80-2,309,475,998.70-721,845,635.40

Finding the Fourth Proportional to 1,539,650,665.80, 2,309,475,998.70 and 721,845,635.40

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Solution

The fourth proportional to 1,539,650,665.80, 2,309,475,998.70 and 721,845,635.40 is: 1,082,768,453.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,539,650,665.80 : 2,309,475,998.70 = 721,845,635.40 : x
  2. Step 2: Convert to fraction form
    1,539,650,665.80/2,309,475,998.70 = 721,845,635.40/x
  3. Step 3: Cross multiply
    1,539,650,665.80x = 2,309,475,998.70 × 721,845,635.40
  4. Step 4: Simplify right side
    1,539,650,665.80x = 1,667,085,169,722,650,880
  5. Step 5: Solve for x
    x = 1,667,085,169,722,650,880/1,539,650,665.80
  6. Step 6: Final answer
    x = 1,082,768,453.10

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1.5x scale

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.