Home / 21,261,890,666.20-31,892,835,999.30-10,217,743,619.80

Finding the Fourth Proportional to 21,261,890,666.20, 31,892,835,999.30 and 10,217,743,619.80

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Solution

The fourth proportional to 21,261,890,666.20, 31,892,835,999.30 and 10,217,743,619.80 is: 15,326,615,429.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,261,890,666.20 : 31,892,835,999.30 = 10,217,743,619.80 : x
  2. Step 2: Convert to fraction form
    21,261,890,666.20/31,892,835,999.30 = 10,217,743,619.80/x
  3. Step 3: Cross multiply
    21,261,890,666.20x = 31,892,835,999.30 × 10,217,743,619.80
  4. Step 4: Simplify right side
    21,261,890,666.20x = 325,872,821,549,175,275,520
  5. Step 5: Solve for x
    x = 325,872,821,549,175,275,520/21,261,890,666.20
  6. Step 6: Final answer
    x = 15,326,615,429.70

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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.