Home / 48,281,037.20-72,421,555.80-42,990,246.80

Finding the Fourth Proportional to 48,281,037.20, 72,421,555.80 and 42,990,246.80

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Solution

The fourth proportional to 48,281,037.20, 72,421,555.80 and 42,990,246.80 is: 64,485,370.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,281,037.20 : 72,421,555.80 = 42,990,246.80 : x
  2. Step 2: Convert to fraction form
    48,281,037.20/72,421,555.80 = 42,990,246.80/x
  3. Step 3: Cross multiply
    48,281,037.20x = 72,421,555.80 × 42,990,246.80
  4. Step 4: Simplify right side
    48,281,037.20x = 3,113,420,557,481,971
  5. Step 5: Solve for x
    x = 3,113,420,557,481,971/48,281,037.20
  6. Step 6: Final answer
    x = 64,485,370.20

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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.