Home / 21,160,639.78-31,740,675.91-5,807,911.31

Finding the Fourth Proportional to 21,160,639.78, 31,740,675.91 and 5,807,911.31

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Solution

The fourth proportional to 21,160,639.78, 31,740,675.91 and 5,807,911.31 is: 8,711,789.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,160,639.78 : 31,740,675.91 = 5,807,911.31 : x
  2. Step 2: Convert to fraction form
    21,160,639.78/31,740,675.91 = 5,807,911.31/x
  3. Step 3: Cross multiply
    21,160,639.78x = 31,740,675.91 × 5,807,911.31
  4. Step 4: Simplify right side
    21,160,639.78x = 184,347,030,604,733.53
  5. Step 5: Solve for x
    x = 184,347,030,604,733.53/21,160,639.78
  6. Step 6: Final answer
    x = 8,711,789.08

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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.