Home / 260,017,424.80-390,026,137.20-87,436,880.80

Finding the Fourth Proportional to 260,017,424.80, 390,026,137.20 and 87,436,880.80

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Solution

The fourth proportional to 260,017,424.80, 390,026,137.20 and 87,436,880.80 is: 131,155,321.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,017,424.80 : 390,026,137.20 = 87,436,880.80 : x
  2. Step 2: Convert to fraction form
    260,017,424.80/390,026,137.20 = 87,436,880.80/x
  3. Step 3: Cross multiply
    260,017,424.80x = 390,026,137.20 × 87,436,880.80
  4. Step 4: Simplify right side
    260,017,424.80x = 34,102,668,867,240,844
  5. Step 5: Solve for x
    x = 34,102,668,867,240,844/260,017,424.80
  6. Step 6: Final answer
    x = 131,155,321.20

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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.