Home / 13,538,406,412.80-20,307,609,619.20-11,211,970,291.20

Finding the Fourth Proportional to 13,538,406,412.80, 20,307,609,619.20 and 11,211,970,291.20

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Solution

The fourth proportional to 13,538,406,412.80, 20,307,609,619.20 and 11,211,970,291.20 is: 16,817,955,436.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,538,406,412.80 : 20,307,609,619.20 = 11,211,970,291.20 : x
  2. Step 2: Convert to fraction form
    13,538,406,412.80/20,307,609,619.20 = 11,211,970,291.20/x
  3. Step 3: Cross multiply
    13,538,406,412.80x = 20,307,609,619.20 × 11,211,970,291.20
  4. Step 4: Simplify right side
    13,538,406,412.80x = 227,688,315,735,757,783,040
  5. Step 5: Solve for x
    x = 227,688,315,735,757,783,040/13,538,406,412.80
  6. Step 6: Final answer
    x = 16,817,955,436.80

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1.5x scale

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.