Home / 718,968,310.20-1,078,452,465.30-370,289,870.10

Finding the Fourth Proportional to 718,968,310.20, 1,078,452,465.30 and 370,289,870.10

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Solution

The fourth proportional to 718,968,310.20, 1,078,452,465.30 and 370,289,870.10 is: 555,434,805.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,968,310.20 : 1,078,452,465.30 = 370,289,870.10 : x
  2. Step 2: Convert to fraction form
    718,968,310.20/1,078,452,465.30 = 370,289,870.10/x
  3. Step 3: Cross multiply
    718,968,310.20x = 1,078,452,465.30 × 370,289,870.10
  4. Step 4: Simplify right side
    718,968,310.20x = 399,340,023,284,961,792
  5. Step 5: Solve for x
    x = 399,340,023,284,961,792/718,968,310.20
  6. Step 6: Final answer
    x = 555,434,805.15

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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.