Home / 20,957,322,024.10-31,435,983,036.15-12,589,039,461.70

Finding the Fourth Proportional to 20,957,322,024.10, 31,435,983,036.15 and 12,589,039,461.70

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Solution

The fourth proportional to 20,957,322,024.10, 31,435,983,036.15 and 12,589,039,461.70 is: 18,883,559,192.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,957,322,024.10 : 31,435,983,036.15 = 12,589,039,461.70 : x
  2. Step 2: Convert to fraction form
    20,957,322,024.10/31,435,983,036.15 = 12,589,039,461.70/x
  3. Step 3: Cross multiply
    20,957,322,024.10x = 31,435,983,036.15 × 12,589,039,461.70
  4. Step 4: Simplify right side
    20,957,322,024.10x = 395,748,830,959,424,176,128
  5. Step 5: Solve for x
    x = 395,748,830,959,424,176,128/20,957,322,024.10
  6. Step 6: Final answer
    x = 18,883,559,192.55

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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.