Home / 422,048,330.40-633,072,495.60-349,488,919.20

Finding the Fourth Proportional to 422,048,330.40, 633,072,495.60 and 349,488,919.20

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Solution

The fourth proportional to 422,048,330.40, 633,072,495.60 and 349,488,919.20 is: 524,233,378.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,048,330.40 : 633,072,495.60 = 349,488,919.20 : x
  2. Step 2: Convert to fraction form
    422,048,330.40/633,072,495.60 = 349,488,919.20/x
  3. Step 3: Cross multiply
    422,048,330.40x = 633,072,495.60 × 349,488,919.20
  4. Step 4: Simplify right side
    422,048,330.40x = 221,251,822,262,490,752
  5. Step 5: Solve for x
    x = 221,251,822,262,490,752/422,048,330.40
  6. Step 6: Final answer
    x = 524,233,378.80

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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.