Home / 20,221,128,031.20-30,319,598,811.60-10,425,607,519.20

Finding the Fourth Proportional to 20,221,128,031.20, 30,319,598,811.60 and 10,425,607,519.20

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Solution

The fourth proportional to 20,221,128,031.20, 30,319,598,811.60 and 10,425,607,519.20 is: 15,632,176,249.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,221,128,031.20 : 30,319,598,811.60 = 10,425,607,519.20 : x
  2. Step 2: Convert to fraction form
    20,221,128,031.20/30,319,598,811.60 = 10,425,607,519.20/x
  3. Step 3: Cross multiply
    20,221,128,031.20x = 30,319,598,811.60 × 10,425,607,519.20
  4. Step 4: Simplify right side
    20,221,128,031.20x = 316,100,237,349,344,378,880
  5. Step 5: Solve for x
    x = 316,100,237,349,344,378,880/20,221,128,031.20
  6. Step 6: Final answer
    x = 15,632,176,249.60

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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.