Home / 315,049,869.20-472,574,803.80-85,018,584.80

Finding the Fourth Proportional to 315,049,869.20, 472,574,803.80 and 85,018,584.80

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Solution

The fourth proportional to 315,049,869.20, 472,574,803.80 and 85,018,584.80 is: 127,527,877.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,049,869.20 : 472,574,803.80 = 85,018,584.80 : x
  2. Step 2: Convert to fraction form
    315,049,869.20/472,574,803.80 = 85,018,584.80/x
  3. Step 3: Cross multiply
    315,049,869.20x = 472,574,803.80 × 85,018,584.80
  4. Step 4: Simplify right side
    315,049,869.20x = 40,177,641,031,213,664
  5. Step 5: Solve for x
    x = 40,177,641,031,213,664/315,049,869.20
  6. Step 6: Final answer
    x = 127,527,877.20

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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.