Home / 15,664,985.15-21,617,741.72-8,789,018.27

Finding the Fourth Proportional to 15,664,985.15, 21,617,741.72 and 8,789,018.27

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Solution

The fourth proportional to 15,664,985.15, 21,617,741.72 and 8,789,018.27 is: 12,128,880.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,664,985.15 : 21,617,741.72 = 8,789,018.27 : x
  2. Step 2: Convert to fraction form
    15,664,985.15/21,617,741.72 = 8,789,018.27/x
  3. Step 3: Cross multiply
    15,664,985.15x = 21,617,741.72 × 8,789,018.27
  4. Step 4: Simplify right side
    15,664,985.15x = 189,998,726,889,276.12
  5. Step 5: Solve for x
    x = 189,998,726,889,276.12/15,664,985.15
  6. Step 6: Final answer
    x = 12,128,880.12

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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.