Home / 415,171,307.20-622,756,960.80-262,288,926.40

Finding the Fourth Proportional to 415,171,307.20, 622,756,960.80 and 262,288,926.40

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Solution

The fourth proportional to 415,171,307.20, 622,756,960.80 and 262,288,926.40 is: 393,433,389.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,171,307.20 : 622,756,960.80 = 262,288,926.40 : x
  2. Step 2: Convert to fraction form
    415,171,307.20/622,756,960.80 = 262,288,926.40/x
  3. Step 3: Cross multiply
    415,171,307.20x = 622,756,960.80 × 262,288,926.40
  4. Step 4: Simplify right side
    415,171,307.20x = 163,342,254,656,358,880
  5. Step 5: Solve for x
    x = 163,342,254,656,358,880/415,171,307.20
  6. Step 6: Final answer
    x = 393,433,389.60

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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.