Home / 1,021,293,720.80-1,531,940,581.20-608,045,199.20

Finding the Fourth Proportional to 1,021,293,720.80, 1,531,940,581.20 and 608,045,199.20

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Solution

The fourth proportional to 1,021,293,720.80, 1,531,940,581.20 and 608,045,199.20 is: 912,067,798.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,293,720.80 : 1,531,940,581.20 = 608,045,199.20 : x
  2. Step 2: Convert to fraction form
    1,021,293,720.80/1,531,940,581.20 = 608,045,199.20/x
  3. Step 3: Cross multiply
    1,021,293,720.80x = 1,531,940,581.20 × 608,045,199.20
  4. Step 4: Simplify right side
    1,021,293,720.80x = 931,489,115,858,317,824
  5. Step 5: Solve for x
    x = 931,489,115,858,317,824/1,021,293,720.80
  6. Step 6: Final answer
    x = 912,067,798.80

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Double scale
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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.