Home / 8,139,647,830.30-12,210,367,540.65-2,970,909,526.30

Finding the Fourth Proportional to 8,139,647,830.30, 12,210,367,540.65 and 2,970,909,526.30

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Solution

The fourth proportional to 8,139,647,830.30, 12,210,367,540.65 and 2,970,909,526.30 is: 4,456,691,247.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,139,647,830.30 : 12,210,367,540.65 = 2,970,909,526.30 : x
  2. Step 2: Convert to fraction form
    8,139,647,830.30/12,210,367,540.65 = 2,970,909,526.30/x
  3. Step 3: Cross multiply
    8,139,647,830.30x = 12,210,367,540.65 × 2,970,909,526.30
  4. Step 4: Simplify right side
    8,139,647,830.30x = 36,275,897,246,141,386,752
  5. Step 5: Solve for x
    x = 36,275,897,246,141,386,752/8,139,647,830.30
  6. Step 6: Final answer
    x = 4,456,691,247.88

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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.