Home / 807,180,815.20-1,113,909,514.78-435,902,813.78

Finding the Fourth Proportional to 807,180,815.20, 1,113,909,514.78 and 435,902,813.78

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Solution

The fourth proportional to 807,180,815.20, 1,113,909,514.78 and 435,902,813.78 is: 601,545,877.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,180,815.20 : 1,113,909,514.78 = 435,902,813.78 : x
  2. Step 2: Convert to fraction form
    807,180,815.20/1,113,909,514.78 = 435,902,813.78/x
  3. Step 3: Cross multiply
    807,180,815.20x = 1,113,909,514.78 × 435,902,813.78
  4. Step 4: Simplify right side
    807,180,815.20x = 485,556,291,788,916,480
  5. Step 5: Solve for x
    x = 485,556,291,788,916,480/807,180,815.20
  6. Step 6: Final answer
    x = 601,545,877.51

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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.