Home / 31,564,733,739.20-43,549,083,486.24-21,522,794,638.40

Finding the Fourth Proportional to 31,564,733,739.20, 43,549,083,486.24 and 21,522,794,638.40

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Solution

The fourth proportional to 31,564,733,739.20, 43,549,083,486.24 and 21,522,794,638.40 is: 29,694,468,146.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,564,733,739.20 : 43,549,083,486.24 = 21,522,794,638.40 : x
  2. Step 2: Convert to fraction form
    31,564,733,739.20/43,549,083,486.24 = 21,522,794,638.40/x
  3. Step 3: Cross multiply
    31,564,733,739.20x = 43,549,083,486.24 × 21,522,794,638.40
  4. Step 4: Simplify right side
    31,564,733,739.20x = 937,297,980,564,880,228,352
  5. Step 5: Solve for x
    x = 937,297,980,564,880,228,352/31,564,733,739.20
  6. Step 6: Final answer
    x = 29,694,468,146.29

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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.