Home / 21,191,649.84-31,781,783.56-5,835,283.46

Finding the Fourth Proportional to 21,191,649.84, 31,781,783.56 and 5,835,283.46

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Solution

The fourth proportional to 21,191,649.84, 31,781,783.56 and 5,835,283.46 is: 8,751,358.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,191,649.84 : 31,781,783.56 = 5,835,283.46 : x
  2. Step 2: Convert to fraction form
    21,191,649.84/31,781,783.56 = 5,835,283.46/x
  3. Step 3: Cross multiply
    21,191,649.84x = 31,781,783.56 × 5,835,283.46
  4. Step 4: Simplify right side
    21,191,649.84x = 185,455,715,936,967.91
  5. Step 5: Solve for x
    x = 185,455,715,936,967.91/21,191,649.84
  6. Step 6: Final answer
    x = 8,751,358.07

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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.