Home / 42,615,435.76-63,968,643.20-18,366,329.68

Finding the Fourth Proportional to 42,615,435.76, 63,968,643.20 and 18,366,329.68

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Solution

The fourth proportional to 42,615,435.76, 63,968,643.20 and 18,366,329.68 is: 27,569,099.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,615,435.76 : 63,968,643.20 = 18,366,329.68 : x
  2. Step 2: Convert to fraction form
    42,615,435.76/63,968,643.20 = 18,366,329.68/x
  3. Step 3: Cross multiply
    42,615,435.76x = 63,968,643.20 × 18,366,329.68
  4. Step 4: Simplify right side
    42,615,435.76x = 1,174,869,190,193,490.25
  5. Step 5: Solve for x
    x = 1,174,869,190,193,490.25/42,615,435.76
  6. Step 6: Final answer
    x = 27,569,099.53

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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.