Home / 1,212,436,865.16-1,818,647,666.28-652,462,468.05

Finding the Fourth Proportional to 1,212,436,865.16, 1,818,647,666.28 and 652,462,468.05

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Solution

The fourth proportional to 1,212,436,865.16, 1,818,647,666.28 and 652,462,468.05 is: 978,689,595.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,436,865.16 : 1,818,647,666.28 = 652,462,468.05 : x
  2. Step 2: Convert to fraction form
    1,212,436,865.16/1,818,647,666.28 = 652,462,468.05/x
  3. Step 3: Cross multiply
    1,212,436,865.16x = 1,818,647,666.28 × 652,462,468.05
  4. Step 4: Simplify right side
    1,212,436,865.16x = 1,186,599,344,854,421,504
  5. Step 5: Solve for x
    x = 1,186,599,344,854,421,504/1,212,436,865.16
  6. Step 6: Final answer
    x = 978,689,595.27

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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.