Home / 641,072,431.75-884,671,274.50-358,814,788.69

Finding the Fourth Proportional to 641,072,431.75, 884,671,274.50 and 358,814,788.69

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Solution

The fourth proportional to 641,072,431.75, 884,671,274.50 and 358,814,788.69 is: 495,159,549.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,072,431.75 : 884,671,274.50 = 358,814,788.69 : x
  2. Step 2: Convert to fraction form
    641,072,431.75/884,671,274.50 = 358,814,788.69/x
  3. Step 3: Cross multiply
    641,072,431.75x = 884,671,274.50 × 358,814,788.69
  4. Step 4: Simplify right side
    641,072,431.75x = 317,433,136,419,830,464
  5. Step 5: Solve for x
    x = 317,433,136,419,830,464/641,072,431.75
  6. Step 6: Final answer
    x = 495,159,549.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.