Home / 21,581,258.40-32,366,703.60-12,463,639.20

Finding the Fourth Proportional to 21,581,258.40, 32,366,703.60 and 12,463,639.20

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Solution

The fourth proportional to 21,581,258.40, 32,366,703.60 and 12,463,639.20 is: 18,692,464.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,581,258.40 : 32,366,703.60 = 12,463,639.20 : x
  2. Step 2: Convert to fraction form
    21,581,258.40/32,366,703.60 = 12,463,639.20/x
  3. Step 3: Cross multiply
    21,581,258.40x = 32,366,703.60 × 12,463,639.20
  4. Step 4: Simplify right side
    21,581,258.40x = 403,406,915,763,741.12
  5. Step 5: Solve for x
    x = 403,406,915,763,741.12/21,581,258.40
  6. Step 6: Final answer
    x = 18,692,464.93

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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.