Home / 21,077,955.48-31,620,281.32-7,435,274.52

Finding the Fourth Proportional to 21,077,955.48, 31,620,281.32 and 7,435,274.52

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Solution

The fourth proportional to 21,077,955.48, 31,620,281.32 and 7,435,274.52 is: 11,154,092.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,077,955.48 : 31,620,281.32 = 7,435,274.52 : x
  2. Step 2: Convert to fraction form
    21,077,955.48/31,620,281.32 = 7,435,274.52/x
  3. Step 3: Cross multiply
    21,077,955.48x = 31,620,281.32 × 7,435,274.52
  4. Step 4: Simplify right side
    21,077,955.48x = 235,105,472,013,827.97
  5. Step 5: Solve for x
    x = 235,105,472,013,827.97/21,077,955.48
  6. Step 6: Final answer
    x = 11,154,092.83

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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.