Home / 1,353,952,972.53-1,868,723,061.39-878,232,897.18

Finding the Fourth Proportional to 1,353,952,972.53, 1,868,723,061.39 and 878,232,897.18

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Solution

The fourth proportional to 1,353,952,972.53, 1,868,723,061.39 and 878,232,897.18 is: 1,212,135,208.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353,952,972.53 : 1,868,723,061.39 = 878,232,897.18 : x
  2. Step 2: Convert to fraction form
    1,353,952,972.53/1,868,723,061.39 = 878,232,897.18/x
  3. Step 3: Cross multiply
    1,353,952,972.53x = 1,868,723,061.39 × 878,232,897.18
  4. Step 4: Simplify right side
    1,353,952,972.53x = 1,641,174,068,231,618,816
  5. Step 5: Solve for x
    x = 1,641,174,068,231,618,816/1,353,952,972.53
  6. Step 6: Final answer
    x = 1,212,135,208.19

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Double scale
Find fourth proportional to 1,353,952,973.53, 1,868,723,062.77 and 878,232,898.18
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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.