Home / 21,053,874,154.40-31,580,811,231.60-16,921,388,938.40

Finding the Fourth Proportional to 21,053,874,154.40, 31,580,811,231.60 and 16,921,388,938.40

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Solution

The fourth proportional to 21,053,874,154.40, 31,580,811,231.60 and 16,921,388,938.40 is: 25,382,083,407.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,053,874,154.40 : 31,580,811,231.60 = 16,921,388,938.40 : x
  2. Step 2: Convert to fraction form
    21,053,874,154.40/31,580,811,231.60 = 16,921,388,938.40/x
  3. Step 3: Cross multiply
    21,053,874,154.40x = 31,580,811,231.60 × 16,921,388,938.40
  4. Step 4: Simplify right side
    21,053,874,154.40x = 534,391,189,840,094,691,328
  5. Step 5: Solve for x
    x = 534,391,189,840,094,691,328/21,053,874,154.40
  6. Step 6: Final answer
    x = 25,382,083,407.60

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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.