Home / 480,046,540.80-720,069,811.20-472,393,790.40

Finding the Fourth Proportional to 480,046,540.80, 720,069,811.20 and 472,393,790.40

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Solution

The fourth proportional to 480,046,540.80, 720,069,811.20 and 472,393,790.40 is: 708,590,685.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,046,540.80 : 720,069,811.20 = 472,393,790.40 : x
  2. Step 2: Convert to fraction form
    480,046,540.80/720,069,811.20 = 472,393,790.40/x
  3. Step 3: Cross multiply
    480,046,540.80x = 720,069,811.20 × 472,393,790.40
  4. Step 4: Simplify right side
    480,046,540.80x = 340,156,507,465,380,352
  5. Step 5: Solve for x
    x = 340,156,507,465,380,352/480,046,540.80
  6. Step 6: Final answer
    x = 708,590,685.60

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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.