Home / 1,113,849,812.44-1,537,022,755.74-643,981,413.88

Finding the Fourth Proportional to 1,113,849,812.44, 1,537,022,755.74 and 643,981,413.88

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Solution

The fourth proportional to 1,113,849,812.44, 1,537,022,755.74 and 643,981,413.88 is: 888,642,325.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,113,849,812.44 : 1,537,022,755.74 = 643,981,413.88 : x
  2. Step 2: Convert to fraction form
    1,113,849,812.44/1,537,022,755.74 = 643,981,413.88/x
  3. Step 3: Cross multiply
    1,113,849,812.44x = 1,537,022,755.74 × 643,981,413.88
  4. Step 4: Simplify right side
    1,113,849,812.44x = 989,814,087,407,179,136
  5. Step 5: Solve for x
    x = 989,814,087,407,179,136/1,113,849,812.44
  6. Step 6: Final answer
    x = 888,642,325.34

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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.