Home / 64,864,087.90-89,609,667.38-42,589,919.36

Finding the Fourth Proportional to 64,864,087.90, 89,609,667.38 and 42,589,919.36

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Solution

The fourth proportional to 64,864,087.90, 89,609,667.38 and 42,589,919.36 is: 58,837,927.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,864,087.90 : 89,609,667.38 = 42,589,919.36 : x
  2. Step 2: Convert to fraction form
    64,864,087.90/89,609,667.38 = 42,589,919.36/x
  3. Step 3: Cross multiply
    64,864,087.90x = 89,609,667.38 × 42,589,919.36
  4. Step 4: Simplify right side
    64,864,087.90x = 3,816,468,507,590,622
  5. Step 5: Solve for x
    x = 3,816,468,507,590,622/64,864,087.90
  6. Step 6: Final answer
    x = 58,837,927.60

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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.