Home / 15,510,436.40-21,403,984.02-8,634,919.04

Finding the Fourth Proportional to 15,510,436.40, 21,403,984.02 and 8,634,919.04

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Solution

The fourth proportional to 15,510,436.40, 21,403,984.02 and 8,634,919.04 is: 11,915,955.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,510,436.40 : 21,403,984.02 = 8,634,919.04 : x
  2. Step 2: Convert to fraction form
    15,510,436.40/21,403,984.02 = 8,634,919.04/x
  3. Step 3: Cross multiply
    15,510,436.40x = 21,403,984.02 × 8,634,919.04
  4. Step 4: Simplify right side
    15,510,436.40x = 184,821,669,146,153.72
  5. Step 5: Solve for x
    x = 184,821,669,146,153.72/15,510,436.40
  6. Step 6: Final answer
    x = 11,915,955.45

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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.