Home / 15,404,216.88-21,258,143.64-8,435,188.08

Finding the Fourth Proportional to 15,404,216.88, 21,258,143.64 and 8,435,188.08

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Solution

The fourth proportional to 15,404,216.88, 21,258,143.64 and 8,435,188.08 is: 11,640,737.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,404,216.88 : 21,258,143.64 = 8,435,188.08 : x
  2. Step 2: Convert to fraction form
    15,404,216.88/21,258,143.64 = 8,435,188.08/x
  3. Step 3: Cross multiply
    15,404,216.88x = 21,258,143.64 × 8,435,188.08
  4. Step 4: Simplify right side
    15,404,216.88x = 179,316,439,835,055.81
  5. Step 5: Solve for x
    x = 179,316,439,835,055.81/15,404,216.88
  6. Step 6: Final answer
    x = 11,640,737.16

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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.