Home / 299,004,078.60-448,506,117.90-80,653,998.60

Finding the Fourth Proportional to 299,004,078.60, 448,506,117.90 and 80,653,998.60

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Solution

The fourth proportional to 299,004,078.60, 448,506,117.90 and 80,653,998.60 is: 120,980,997.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,004,078.60 : 448,506,117.90 = 80,653,998.60 : x
  2. Step 2: Convert to fraction form
    299,004,078.60/448,506,117.90 = 80,653,998.60/x
  3. Step 3: Cross multiply
    299,004,078.60x = 448,506,117.90 × 80,653,998.60
  4. Step 4: Simplify right side
    299,004,078.60x = 36,173,811,805,198,032
  5. Step 5: Solve for x
    x = 36,173,811,805,198,032/299,004,078.60
  6. Step 6: Final answer
    x = 120,980,997.90

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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.