Home / 15,221,469,985.70-21,006,106,262.14-8,791,170,510.33

Finding the Fourth Proportional to 15,221,469,985.70, 21,006,106,262.14 and 8,791,170,510.33

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Solution

The fourth proportional to 15,221,469,985.70, 21,006,106,262.14 and 8,791,170,510.33 is: 12,132,091,189.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,221,469,985.70 : 21,006,106,262.14 = 8,791,170,510.33 : x
  2. Step 2: Convert to fraction form
    15,221,469,985.70/21,006,106,262.14 = 8,791,170,510.33/x
  3. Step 3: Cross multiply
    15,221,469,985.70x = 21,006,106,262.14 × 8,791,170,510.33
  4. Step 4: Simplify right side
    15,221,469,985.70x = 184,668,261,908,473,511,936
  5. Step 5: Solve for x
    x = 184,668,261,908,473,511,936/15,221,469,985.70
  6. Step 6: Final answer
    x = 12,132,091,189.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.