Home / 990,867,065.30-1,486,266,935.94-253,944,205.82

Finding the Fourth Proportional to 990,867,065.30, 1,486,266,935.94 and 253,944,205.82

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Solution

The fourth proportional to 990,867,065.30, 1,486,266,935.94 and 253,944,205.82 is: 380,907,681.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,867,065.30 : 1,486,266,935.94 = 253,944,205.82 : x
  2. Step 2: Convert to fraction form
    990,867,065.30/1,486,266,935.94 = 253,944,205.82/x
  3. Step 3: Cross multiply
    990,867,065.30x = 1,486,266,935.94 × 253,944,205.82
  4. Step 4: Simplify right side
    990,867,065.30x = 377,428,876,683,808,128
  5. Step 5: Solve for x
    x = 377,428,876,683,808,128/990,867,065.30
  6. Step 6: Final answer
    x = 380,907,681.67

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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.