Home / 285,195,200.40-427,792,800.60-91,112,947.20

Finding the Fourth Proportional to 285,195,200.40, 427,792,800.60 and 91,112,947.20

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Solution

The fourth proportional to 285,195,200.40, 427,792,800.60 and 91,112,947.20 is: 136,669,420.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,195,200.40 : 427,792,800.60 = 91,112,947.20 : x
  2. Step 2: Convert to fraction form
    285,195,200.40/427,792,800.60 = 91,112,947.20/x
  3. Step 3: Cross multiply
    285,195,200.40x = 427,792,800.60 × 91,112,947.20
  4. Step 4: Simplify right side
    285,195,200.40x = 38,977,462,853,607,928
  5. Step 5: Solve for x
    x = 38,977,462,853,607,928/285,195,200.40
  6. Step 6: Final answer
    x = 136,669,420.80

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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.