Home / 989,605,047.87-1,365,617,550.33-549,600,243.39

Finding the Fourth Proportional to 989,605,047.87, 1,365,617,550.33 and 549,600,243.39

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Solution

The fourth proportional to 989,605,047.87, 1,365,617,550.33 and 549,600,243.39 is: 758,427,556.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,605,047.87 : 1,365,617,550.33 = 549,600,243.39 : x
  2. Step 2: Convert to fraction form
    989,605,047.87/1,365,617,550.33 = 549,600,243.39/x
  3. Step 3: Cross multiply
    989,605,047.87x = 1,365,617,550.33 × 549,600,243.39
  4. Step 4: Simplify right side
    989,605,047.87x = 750,543,738,039,023,488
  5. Step 5: Solve for x
    x = 750,543,738,039,023,488/989,605,047.87
  6. Step 6: Final answer
    x = 758,427,556.18

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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.