Home / 20,120,378,412.08-27,765,313,814.18-10,964,712,830.58

Finding the Fourth Proportional to 20,120,378,412.08, 27,765,313,814.18 and 10,964,712,830.58

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Solution

The fourth proportional to 20,120,378,412.08, 27,765,313,814.18 and 10,964,712,830.58 is: 15,130,863,167.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,120,378,412.08 : 27,765,313,814.18 = 10,964,712,830.58 : x
  2. Step 2: Convert to fraction form
    20,120,378,412.08/27,765,313,814.18 = 10,964,712,830.58/x
  3. Step 3: Cross multiply
    20,120,378,412.08x = 27,765,313,814.18 × 10,964,712,830.58
  4. Step 4: Simplify right side
    20,120,378,412.08x = 304,438,692,623,480,979,456
  5. Step 5: Solve for x
    x = 304,438,692,623,480,979,456/20,120,378,412.08
  6. Step 6: Final answer
    x = 15,130,863,167.11

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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.