Home / 42,987,346.37-64,421,363.56-19,586,901.66

Finding the Fourth Proportional to 42,987,346.37, 64,421,363.56 and 19,586,901.66

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Solution

The fourth proportional to 42,987,346.37, 64,421,363.56 and 19,586,901.66 is: 29,353,170.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,987,346.37 : 64,421,363.56 = 19,586,901.66 : x
  2. Step 2: Convert to fraction form
    42,987,346.37/64,421,363.56 = 19,586,901.66/x
  3. Step 3: Cross multiply
    42,987,346.37x = 64,421,363.56 × 19,586,901.66
  4. Step 4: Simplify right side
    42,987,346.37x = 1,261,814,912,852,827.50
  5. Step 5: Solve for x
    x = 1,261,814,912,852,827.50/42,987,346.37
  6. Step 6: Final answer
    x = 29,353,170.63

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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.