Home / 816,844,621.20-1,225,266,931.80-203,428,846.95

Finding the Fourth Proportional to 816,844,621.20, 1,225,266,931.80 and 203,428,846.95

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Solution

The fourth proportional to 816,844,621.20, 1,225,266,931.80 and 203,428,846.95 is: 305,143,270.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,844,621.20 : 1,225,266,931.80 = 203,428,846.95 : x
  2. Step 2: Convert to fraction form
    816,844,621.20/1,225,266,931.80 = 203,428,846.95/x
  3. Step 3: Cross multiply
    816,844,621.20x = 1,225,266,931.80 × 203,428,846.95
  4. Step 4: Simplify right side
    816,844,621.20x = 249,254,639,142,038,272
  5. Step 5: Solve for x
    x = 249,254,639,142,038,272/816,844,621.20
  6. Step 6: Final answer
    x = 305,143,270.43

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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.