Home / 21,154,678.92-31,732,025.40-5,802,128.46

Finding the Fourth Proportional to 21,154,678.92, 31,732,025.40 and 5,802,128.46

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Solution

The fourth proportional to 21,154,678.92, 31,732,025.40 and 5,802,128.46 is: 8,703,194.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,154,678.92 : 31,732,025.40 = 5,802,128.46 : x
  2. Step 2: Convert to fraction form
    21,154,678.92/31,732,025.40 = 5,802,128.46/x
  3. Step 3: Cross multiply
    21,154,678.92x = 31,732,025.40 × 5,802,128.46
  4. Step 4: Simplify right side
    21,154,678.92x = 184,113,287,666,782.88
  5. Step 5: Solve for x
    x = 184,113,287,666,782.88/21,154,678.92
  6. Step 6: Final answer
    x = 8,703,194.62

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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.