Home / 1,427,292,019.74-1,970,355,041.92-957,221,389.02

Finding the Fourth Proportional to 1,427,292,019.74, 1,970,355,041.92 and 957,221,389.02

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Solution

The fourth proportional to 1,427,292,019.74, 1,970,355,041.92 and 957,221,389.02 is: 1,321,429,647.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,292,019.74 : 1,970,355,041.92 = 957,221,389.02 : x
  2. Step 2: Convert to fraction form
    1,427,292,019.74/1,970,355,041.92 = 957,221,389.02/x
  3. Step 3: Cross multiply
    1,427,292,019.74x = 1,970,355,041.92 × 957,221,389.02
  4. Step 4: Simplify right side
    1,427,292,019.74x = 1,886,065,990,089,222,656
  5. Step 5: Solve for x
    x = 1,886,065,990,089,222,656/1,427,292,019.74
  6. Step 6: Final answer
    x = 1,321,429,647.19

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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.