Home / 20,412,063,720.80-30,593,909,110.80-8,621,159,400.80

Finding the Fourth Proportional to 20,412,063,720.80, 30,593,909,110.80 and 8,621,159,400.80

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Solution

The fourth proportional to 20,412,063,720.80, 30,593,909,110.80 and 8,621,159,400.80 is: 12,921,523,798.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,412,063,720.80 : 30,593,909,110.80 = 8,621,159,400.80 : x
  2. Step 2: Convert to fraction form
    20,412,063,720.80/30,593,909,110.80 = 8,621,159,400.80/x
  3. Step 3: Cross multiply
    20,412,063,720.80x = 30,593,909,110.80 × 8,621,159,400.80
  4. Step 4: Simplify right side
    20,412,063,720.80x = 263,754,967,137,794,162,688
  5. Step 5: Solve for x
    x = 263,754,967,137,794,162,688/20,412,063,720.80
  6. Step 6: Final answer
    x = 12,921,523,798.16

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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.