Home / 500,485,510.80-750,728,266.20-480,078,176.40

Finding the Fourth Proportional to 500,485,510.80, 750,728,266.20 and 480,078,176.40

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Solution

The fourth proportional to 500,485,510.80, 750,728,266.20 and 480,078,176.40 is: 720,117,264.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,485,510.80 : 750,728,266.20 = 480,078,176.40 : x
  2. Step 2: Convert to fraction form
    500,485,510.80/750,728,266.20 = 480,078,176.40/x
  3. Step 3: Cross multiply
    500,485,510.80x = 750,728,266.20 × 480,078,176.40
  4. Step 4: Simplify right side
    500,485,510.80x = 360,408,257,009,229,760
  5. Step 5: Solve for x
    x = 360,408,257,009,229,760/500,485,510.80
  6. Step 6: Final answer
    x = 720,117,264.60

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Similar ratio
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1.5x scale

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.