Home / 21,275,145,330.15-31,912,717,995.23-12,894,533,336.55

Finding the Fourth Proportional to 21,275,145,330.15, 31,912,717,995.23 and 12,894,533,336.55

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Solution

The fourth proportional to 21,275,145,330.15, 31,912,717,995.23 and 12,894,533,336.55 is: 19,341,800,004.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,275,145,330.15 : 31,912,717,995.23 = 12,894,533,336.55 : x
  2. Step 2: Convert to fraction form
    21,275,145,330.15/31,912,717,995.23 = 12,894,533,336.55/x
  3. Step 3: Cross multiply
    21,275,145,330.15x = 31,912,717,995.23 × 12,894,533,336.55
  4. Step 4: Simplify right side
    21,275,145,330.15x = 411,499,606,049,347,796,992
  5. Step 5: Solve for x
    x = 411,499,606,049,347,796,992/21,275,145,330.15
  6. Step 6: Final answer
    x = 19,341,800,004.83

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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.