Home / 21,153,117.48-31,732,500.79-8,370,632.83

Finding the Fourth Proportional to 21,153,117.48, 31,732,500.79 and 8,370,632.83

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Solution

The fourth proportional to 21,153,117.48, 31,732,500.79 and 8,370,632.83 is: 12,557,066.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,153,117.48 : 31,732,500.79 = 8,370,632.83 : x
  2. Step 2: Convert to fraction form
    21,153,117.48/31,732,500.79 = 8,370,632.83/x
  3. Step 3: Cross multiply
    21,153,117.48x = 31,732,500.79 × 8,370,632.83
  4. Step 4: Simplify right side
    21,153,117.48x = 265,621,112,753,039.03
  5. Step 5: Solve for x
    x = 265,621,112,753,039.03/21,153,117.48
  6. Step 6: Final answer
    x = 12,557,066.97

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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.