Home / 30,131,006.34-45,169,970.25-11,947,982.16

Finding the Fourth Proportional to 30,131,006.34, 45,169,970.25 and 11,947,982.16

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Solution

The fourth proportional to 30,131,006.34, 45,169,970.25 and 11,947,982.16 is: 17,911,449.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,131,006.34 : 45,169,970.25 = 11,947,982.16 : x
  2. Step 2: Convert to fraction form
    30,131,006.34/45,169,970.25 = 11,947,982.16/x
  3. Step 3: Cross multiply
    30,131,006.34x = 45,169,970.25 × 11,947,982.16
  4. Step 4: Simplify right side
    30,131,006.34x = 539,689,998,714,730.75
  5. Step 5: Solve for x
    x = 539,689,998,714,730.75/30,131,006.34
  6. Step 6: Final answer
    x = 17,911,449.51

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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.