Home / 21,280,789,065.40-31,921,183,598.10-13,444,372,655.80

Finding the Fourth Proportional to 21,280,789,065.40, 31,921,183,598.10 and 13,444,372,655.80

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Solution

The fourth proportional to 21,280,789,065.40, 31,921,183,598.10 and 13,444,372,655.80 is: 20,166,558,983.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,280,789,065.40 : 31,921,183,598.10 = 13,444,372,655.80 : x
  2. Step 2: Convert to fraction form
    21,280,789,065.40/31,921,183,598.10 = 13,444,372,655.80/x
  3. Step 3: Cross multiply
    21,280,789,065.40x = 31,921,183,598.10 × 13,444,372,655.80
  4. Step 4: Simplify right side
    21,280,789,065.40x = 429,160,287,907,067,068,416
  5. Step 5: Solve for x
    x = 429,160,287,907,067,068,416/21,280,789,065.40
  6. Step 6: Final answer
    x = 20,166,558,983.70

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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.