Home / 1,213,643,851.10-1,817,386,480.65-667,768,651.10

Finding the Fourth Proportional to 1,213,643,851.10, 1,817,386,480.65 and 667,768,651.10

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Solution

The fourth proportional to 1,213,643,851.10, 1,817,386,480.65 and 667,768,651.10 is: 999,958,692.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,643,851.10 : 1,817,386,480.65 = 667,768,651.10 : x
  2. Step 2: Convert to fraction form
    1,213,643,851.10/1,817,386,480.65 = 667,768,651.10/x
  3. Step 3: Cross multiply
    1,213,643,851.10x = 1,817,386,480.65 × 667,768,651.10
  4. Step 4: Simplify right side
    1,213,643,851.10x = 1,213,593,718,711,026,944
  5. Step 5: Solve for x
    x = 1,213,593,718,711,026,944/1,213,643,851.10
  6. Step 6: Final answer
    x = 999,958,692.67

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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.