Home / 19,928,273,145.60-29,892,409,718.40-12,589,918,867.20

Finding the Fourth Proportional to 19,928,273,145.60, 29,892,409,718.40 and 12,589,918,867.20

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Solution

The fourth proportional to 19,928,273,145.60, 29,892,409,718.40 and 12,589,918,867.20 is: 18,884,878,300.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,928,273,145.60 : 29,892,409,718.40 = 12,589,918,867.20 : x
  2. Step 2: Convert to fraction form
    19,928,273,145.60/29,892,409,718.40 = 12,589,918,867.20/x
  3. Step 3: Cross multiply
    19,928,273,145.60x = 29,892,409,718.40 × 12,589,918,867.20
  4. Step 4: Simplify right side
    19,928,273,145.60x = 376,343,013,099,756,847,104
  5. Step 5: Solve for x
    x = 376,343,013,099,756,847,104/19,928,273,145.60
  6. Step 6: Final answer
    x = 18,884,878,300.80

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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.