Home / 28,371,353.30-42,557,029.95-19,711,999.70

Finding the Fourth Proportional to 28,371,353.30, 42,557,029.95 and 19,711,999.70

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Solution

The fourth proportional to 28,371,353.30, 42,557,029.95 and 19,711,999.70 is: 29,567,999.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,371,353.30 : 42,557,029.95 = 19,711,999.70 : x
  2. Step 2: Convert to fraction form
    28,371,353.30/42,557,029.95 = 19,711,999.70/x
  3. Step 3: Cross multiply
    28,371,353.30x = 42,557,029.95 × 19,711,999.70
  4. Step 4: Simplify right side
    28,371,353.30x = 838,884,161,607,291
  5. Step 5: Solve for x
    x = 838,884,161,607,291/28,371,353.30
  6. Step 6: Final answer
    x = 29,567,999.55

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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.