Home / 215,864,490.64-323,819,418.84-70,309,386.32

Finding the Fourth Proportional to 215,864,490.64, 323,819,418.84 and 70,309,386.32

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Solution

The fourth proportional to 215,864,490.64, 323,819,418.84 and 70,309,386.32 is: 105,471,467.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,864,490.64 : 323,819,418.84 = 70,309,386.32 : x
  2. Step 2: Convert to fraction form
    215,864,490.64/323,819,418.84 = 70,309,386.32/x
  3. Step 3: Cross multiply
    215,864,490.64x = 323,819,418.84 × 70,309,386.32
  4. Step 4: Simplify right side
    215,864,490.64x = 22,767,544,617,139,444
  5. Step 5: Solve for x
    x = 22,767,544,617,139,444/215,864,490.64
  6. Step 6: Final answer
    x = 105,471,467.54

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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.