Home / 1,139,107,320,636.90-1,571,969,265,877.10-618,262,846,372.40

Finding the Fourth Proportional to 1,139,107,320,636.90, 1,571,969,265,877.10 and 618,262,846,372.40

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Solution

The fourth proportional to 1,139,107,320,636.90, 1,571,969,265,877.10 and 618,262,846,372.40 is: 853,203,359,440.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,107,320,636.90 : 1,571,969,265,877.10 = 618,262,846,372.40 : x
  2. Step 2: Convert to fraction form
    1,139,107,320,636.90/1,571,969,265,877.10 = 618,262,846,372.40/x
  3. Step 3: Cross multiply
    1,139,107,320,636.90x = 1,571,969,265,877.10 × 618,262,846,372.40
  4. Step 4: Simplify right side
    1,139,107,320,636.90x = 971,890,192,731,107,999,350,784
  5. Step 5: Solve for x
    x = 971,890,192,731,107,999,350,784/1,139,107,320,636.90
  6. Step 6: Final answer
    x = 853,203,359,440.89

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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.