Home / 12,852,900.90-17,732,348.82-8,445,000.78

Finding the Fourth Proportional to 12,852,900.90, 17,732,348.82 and 8,445,000.78

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Solution

The fourth proportional to 12,852,900.90, 17,732,348.82 and 8,445,000.78 is: 11,651,042.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,852,900.90 : 17,732,348.82 = 8,445,000.78 : x
  2. Step 2: Convert to fraction form
    12,852,900.90/17,732,348.82 = 8,445,000.78/x
  3. Step 3: Cross multiply
    12,852,900.90x = 17,732,348.82 × 8,445,000.78
  4. Step 4: Simplify right side
    12,852,900.90x = 149,749,699,616,132.06
  5. Step 5: Solve for x
    x = 149,749,699,616,132.06/12,852,900.90
  6. Step 6: Final answer
    x = 11,651,042.89

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1.5x scale

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.