Home / 1,005,855,395.45-1,388,126,155.55-559,847,325.17

Finding the Fourth Proportional to 1,005,855,395.45, 1,388,126,155.55 and 559,847,325.17

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Solution

The fourth proportional to 1,005,855,395.45, 1,388,126,155.55 and 559,847,325.17 is: 772,614,750.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,855,395.45 : 1,388,126,155.55 = 559,847,325.17 : x
  2. Step 2: Convert to fraction form
    1,005,855,395.45/1,388,126,155.55 = 559,847,325.17/x
  3. Step 3: Cross multiply
    1,005,855,395.45x = 1,388,126,155.55 × 559,847,325.17
  4. Step 4: Simplify right side
    1,005,855,395.45x = 777,138,715,183,881,728
  5. Step 5: Solve for x
    x = 777,138,715,183,881,728/1,005,855,395.45
  6. Step 6: Final answer
    x = 772,614,750.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.