Home / 2,645,891,599.11-3,968,837,397.18-987,928,362.51

Finding the Fourth Proportional to 2,645,891,599.11, 3,968,837,397.18 and 987,928,362.51

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Solution

The fourth proportional to 2,645,891,599.11, 3,968,837,397.18 and 987,928,362.51 is: 1,481,892,543.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,645,891,599.11 : 3,968,837,397.18 = 987,928,362.51 : x
  2. Step 2: Convert to fraction form
    2,645,891,599.11/3,968,837,397.18 = 987,928,362.51/x
  3. Step 3: Cross multiply
    2,645,891,599.11x = 3,968,837,397.18 × 987,928,362.51
  4. Step 4: Simplify right side
    2,645,891,599.11x = 3,920,927,030,864,487,936
  5. Step 5: Solve for x
    x = 3,920,927,030,864,487,936/2,645,891,599.11
  6. Step 6: Final answer
    x = 1,481,892,543.21

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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.