Home / 15,338,416.17-21,174,684.62-9,539,066.19

Finding the Fourth Proportional to 15,338,416.17, 21,174,684.62 and 9,539,066.19

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Solution

The fourth proportional to 15,338,416.17, 21,174,684.62 and 9,539,066.19 is: 13,168,681.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,338,416.17 : 21,174,684.62 = 9,539,066.19 : x
  2. Step 2: Convert to fraction form
    15,338,416.17/21,174,684.62 = 9,539,066.19/x
  3. Step 3: Cross multiply
    15,338,416.17x = 21,174,684.62 × 9,539,066.19
  4. Step 4: Simplify right side
    15,338,416.17x = 201,986,718,094,859.62
  5. Step 5: Solve for x
    x = 201,986,718,094,859.62/15,338,416.17
  6. Step 6: Final answer
    x = 13,168,681.55

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Double scale
Find fourth proportional to 15,338,417.17, 21,174,686 and 9,539,067.19
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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.