Home / 15,365,179.08-21,208,365.24-10,141,999.72

Finding the Fourth Proportional to 15,365,179.08, 21,208,365.24 and 10,141,999.72

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Solution

The fourth proportional to 15,365,179.08, 21,208,365.24 and 10,141,999.72 is: 13,998,875.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,365,179.08 : 21,208,365.24 = 10,141,999.72 : x
  2. Step 2: Convert to fraction form
    15,365,179.08/21,208,365.24 = 10,141,999.72/x
  3. Step 3: Cross multiply
    15,365,179.08x = 21,208,365.24 × 10,141,999.72
  4. Step 4: Simplify right side
    15,365,179.08x = 215,095,234,325,737.72
  5. Step 5: Solve for x
    x = 215,095,234,325,737.72/15,365,179.08
  6. Step 6: Final answer
    x = 13,998,875.85

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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.