Home / 821,789,971.46-1,134,070,062.81-450,514,626.02

Finding the Fourth Proportional to 821,789,971.46, 1,134,070,062.81 and 450,514,626.02

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Solution

The fourth proportional to 821,789,971.46, 1,134,070,062.81 and 450,514,626.02 is: 621,710,130.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,789,971.46 : 1,134,070,062.81 = 450,514,626.02 : x
  2. Step 2: Convert to fraction form
    821,789,971.46/1,134,070,062.81 = 450,514,626.02/x
  3. Step 3: Cross multiply
    821,789,971.46x = 1,134,070,062.81 × 450,514,626.02
  4. Step 4: Simplify right side
    821,789,971.46x = 510,915,150,227,324,992
  5. Step 5: Solve for x
    x = 510,915,150,227,324,992/821,789,971.46
  6. Step 6: Final answer
    x = 621,710,130.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.