Home / 990,701,404.80-1,486,046,858.40-253,769,884.80

Finding the Fourth Proportional to 990,701,404.80, 1,486,046,858.40 and 253,769,884.80

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Solution

The fourth proportional to 990,701,404.80, 1,486,046,858.40 and 253,769,884.80 is: 380,653,482.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,701,404.80 : 1,486,046,858.40 = 253,769,884.80 : x
  2. Step 2: Convert to fraction form
    990,701,404.80/1,486,046,858.40 = 253,769,884.80/x
  3. Step 3: Cross multiply
    990,701,404.80x = 1,486,046,858.40 × 253,769,884.80
  4. Step 4: Simplify right side
    990,701,404.80x = 377,113,940,063,569,984
  5. Step 5: Solve for x
    x = 377,113,940,063,569,984/990,701,404.80
  6. Step 6: Final answer
    x = 380,653,482.71

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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.