Home / 21,390,507.03-29,522,673.54-12,693,475.08

Finding the Fourth Proportional to 21,390,507.03, 29,522,673.54 and 12,693,475.08

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Solution

The fourth proportional to 21,390,507.03, 29,522,673.54 and 12,693,475.08 is: 17,519,235.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,390,507.03 : 29,522,673.54 = 12,693,475.08 : x
  2. Step 2: Convert to fraction form
    21,390,507.03/29,522,673.54 = 12,693,475.08/x
  3. Step 3: Cross multiply
    21,390,507.03x = 29,522,673.54 × 12,693,475.08
  4. Step 4: Simplify right side
    21,390,507.03x = 374,745,320,874,965.38
  5. Step 5: Solve for x
    x = 374,745,320,874,965.38/21,390,507.03
  6. Step 6: Final answer
    x = 17,519,235.07

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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.