Home / 1,317,880,036.82-1,818,669,459.92-723,174,471.32

Finding the Fourth Proportional to 1,317,880,036.82, 1,818,669,459.92 and 723,174,471.32

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Solution

The fourth proportional to 1,317,880,036.82, 1,818,669,459.92 and 723,174,471.32 is: 997,978,031.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,880,036.82 : 1,818,669,459.92 = 723,174,471.32 : x
  2. Step 2: Convert to fraction form
    1,317,880,036.82/1,818,669,459.92 = 723,174,471.32/x
  3. Step 3: Cross multiply
    1,317,880,036.82x = 1,818,669,459.92 × 723,174,471.32
  4. Step 4: Simplify right side
    1,317,880,036.82x = 1,315,215,325,179,860,224
  5. Step 5: Solve for x
    x = 1,315,215,325,179,860,224/1,317,880,036.82
  6. Step 6: Final answer
    x = 997,978,031.71

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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.