Home / 885,744,006.80-1,328,616,010.20-821,246,752.40

Finding the Fourth Proportional to 885,744,006.80, 1,328,616,010.20 and 821,246,752.40

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Solution

The fourth proportional to 885,744,006.80, 1,328,616,010.20 and 821,246,752.40 is: 1,231,870,128.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,744,006.80 : 1,328,616,010.20 = 821,246,752.40 : x
  2. Step 2: Convert to fraction form
    885,744,006.80/1,328,616,010.20 = 821,246,752.40/x
  3. Step 3: Cross multiply
    885,744,006.80x = 1,328,616,010.20 × 821,246,752.40
  4. Step 4: Simplify right side
    885,744,006.80x = 1,091,121,583,563,395,328
  5. Step 5: Solve for x
    x = 1,091,121,583,563,395,328/885,744,006.80
  6. Step 6: Final answer
    x = 1,231,870,128.60

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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.