Home / 826,489,478.71-1,140,555,501.42-455,211,510.09

Finding the Fourth Proportional to 826,489,478.71, 1,140,555,501.42 and 455,211,510.09

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Solution

The fourth proportional to 826,489,478.71, 1,140,555,501.42 and 455,211,510.09 is: 628,191,895.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,489,478.71 : 1,140,555,501.42 = 455,211,510.09 : x
  2. Step 2: Convert to fraction form
    826,489,478.71/1,140,555,501.42 = 455,211,510.09/x
  3. Step 3: Cross multiply
    826,489,478.71x = 1,140,555,501.42 × 455,211,510.09
  4. Step 4: Simplify right side
    826,489,478.71x = 519,193,992,136,848,448
  5. Step 5: Solve for x
    x = 519,193,992,136,848,448/826,489,478.71
  6. Step 6: Final answer
    x = 628,191,895.37

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Double scale
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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.