Home / 21,263,018,465.60-31,894,527,698.40-12,555,889,121.60

Finding the Fourth Proportional to 21,263,018,465.60, 31,894,527,698.40 and 12,555,889,121.60

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Solution

The fourth proportional to 21,263,018,465.60, 31,894,527,698.40 and 12,555,889,121.60 is: 18,833,833,682.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,263,018,465.60 : 31,894,527,698.40 = 12,555,889,121.60 : x
  2. Step 2: Convert to fraction form
    21,263,018,465.60/31,894,527,698.40 = 12,555,889,121.60/x
  3. Step 3: Cross multiply
    21,263,018,465.60x = 31,894,527,698.40 × 12,555,889,121.60
  4. Step 4: Simplify right side
    21,263,018,465.60x = 400,464,153,366,910,468,096
  5. Step 5: Solve for x
    x = 400,464,153,366,910,468,096/21,263,018,465.60
  6. Step 6: Final answer
    x = 18,833,833,682.40

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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.