Home / 1,427,292,027.76-1,970,355,052.98-957,221,397.04

Finding the Fourth Proportional to 1,427,292,027.76, 1,970,355,052.98 and 957,221,397.04

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Solution

The fourth proportional to 1,427,292,027.76, 1,970,355,052.98 and 957,221,397.04 is: 1,321,429,658.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,292,027.76 : 1,970,355,052.98 = 957,221,397.04 : x
  2. Step 2: Convert to fraction form
    1,427,292,027.76/1,970,355,052.98 = 957,221,397.04/x
  3. Step 3: Cross multiply
    1,427,292,027.76x = 1,970,355,052.98 × 957,221,397.04
  4. Step 4: Simplify right side
    1,427,292,027.76x = 1,886,066,016,478,338,816
  5. Step 5: Solve for x
    x = 1,886,066,016,478,338,816/1,427,292,027.76
  6. Step 6: Final answer
    x = 1,321,429,658.26

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Double scale
Find fourth proportional to 1,427,292,028.76, 1,970,355,054.36 and 957,221,398.04
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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.