Home / 21,141,793-31,712,689.50-5,185,441

Finding the Fourth Proportional to 21,141,793, 31,712,689.50 and 5,185,441

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Solution

The fourth proportional to 21,141,793, 31,712,689.50 and 5,185,441 is: 7,778,161.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,141,793 : 31,712,689.50 = 5,185,441 : x
  2. Step 2: Convert to fraction form
    21,141,793/31,712,689.50 = 5,185,441/x
  3. Step 3: Cross multiply
    21,141,793x = 31,712,689.50 × 5,185,441
  4. Step 4: Simplify right side
    21,141,793x = 164,444,280,353,569.50
  5. Step 5: Solve for x
    x = 164,444,280,353,569.50/21,141,793
  6. Step 6: Final answer
    x = 7,778,161.50

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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.