Home / 20,715,717,897.60-28,587,636,928.44-11,560,150,739.76

Finding the Fourth Proportional to 20,715,717,897.60, 28,587,636,928.44 and 11,560,150,739.76

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Solution

The fourth proportional to 20,715,717,897.60, 28,587,636,928.44 and 11,560,150,739.76 is: 15,952,978,015.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,715,717,897.60 : 28,587,636,928.44 = 11,560,150,739.76 : x
  2. Step 2: Convert to fraction form
    20,715,717,897.60/28,587,636,928.44 = 11,560,150,739.76/x
  3. Step 3: Cross multiply
    20,715,717,897.60x = 28,587,636,928.44 × 11,560,150,739.76
  4. Step 4: Simplify right side
    20,715,717,897.60x = 330,477,392,186,295,975,936
  5. Step 5: Solve for x
    x = 330,477,392,186,295,975,936/20,715,717,897.60
  6. Step 6: Final answer
    x = 15,952,978,015.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.