Home / 21,787,661.60-32,681,492.40-18,428,429.60

Finding the Fourth Proportional to 21,787,661.60, 32,681,492.40 and 18,428,429.60

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Solution

The fourth proportional to 21,787,661.60, 32,681,492.40 and 18,428,429.60 is: 27,642,644.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,787,661.60 : 32,681,492.40 = 18,428,429.60 : x
  2. Step 2: Convert to fraction form
    21,787,661.60/32,681,492.40 = 18,428,429.60/x
  3. Step 3: Cross multiply
    21,787,661.60x = 32,681,492.40 × 18,428,429.60
  4. Step 4: Simplify right side
    21,787,661.60x = 602,268,581,916,335
  5. Step 5: Solve for x
    x = 602,268,581,916,335/21,787,661.60
  6. Step 6: Final answer
    x = 27,642,644.40

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.