Home / 1,539,650,661.80-2,309,475,992.70-721,845,631.40

Finding the Fourth Proportional to 1,539,650,661.80, 2,309,475,992.70 and 721,845,631.40

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Solution

The fourth proportional to 1,539,650,661.80, 2,309,475,992.70 and 721,845,631.40 is: 1,082,768,447.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,539,650,661.80 : 2,309,475,992.70 = 721,845,631.40 : x
  2. Step 2: Convert to fraction form
    1,539,650,661.80/2,309,475,992.70 = 721,845,631.40/x
  3. Step 3: Cross multiply
    1,539,650,661.80x = 2,309,475,992.70 × 721,845,631.40
  4. Step 4: Simplify right side
    1,539,650,661.80x = 1,667,085,156,153,673,216
  5. Step 5: Solve for x
    x = 1,667,085,156,153,673,216/1,539,650,661.80
  6. Step 6: Final answer
    x = 1,082,768,447.10

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Double scale
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Similar ratio
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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.