Home / 21,263,018,601.60-31,894,527,902.40-12,555,889,257.60

Finding the Fourth Proportional to 21,263,018,601.60, 31,894,527,902.40 and 12,555,889,257.60

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Solution

The fourth proportional to 21,263,018,601.60, 31,894,527,902.40 and 12,555,889,257.60 is: 18,833,833,886.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,263,018,601.60 : 31,894,527,902.40 = 12,555,889,257.60 : x
  2. Step 2: Convert to fraction form
    21,263,018,601.60/31,894,527,902.40 = 12,555,889,257.60/x
  3. Step 3: Cross multiply
    21,263,018,601.60x = 31,894,527,902.40 × 12,555,889,257.60
  4. Step 4: Simplify right side
    21,263,018,601.60x = 400,464,160,265,967,632,384
  5. Step 5: Solve for x
    x = 400,464,160,265,967,632,384/21,263,018,601.60
  6. Step 6: Final answer
    x = 18,833,833,886.40

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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.