Home / 1,290,604,319,909.50-1,781,190,138,244.30-734,544,644,755.50

Finding the Fourth Proportional to 1,290,604,319,909.50, 1,781,190,138,244.30 and 734,544,644,755.50

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Solution

The fourth proportional to 1,290,604,319,909.50, 1,781,190,138,244.30 and 734,544,644,755.50 is: 1,013,760,497,431.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,604,319,909.50 : 1,781,190,138,244.30 = 734,544,644,755.50 : x
  2. Step 2: Convert to fraction form
    1,290,604,319,909.50/1,781,190,138,244.30 = 734,544,644,755.50/x
  3. Step 3: Cross multiply
    1,290,604,319,909.50x = 1,781,190,138,244.30 × 734,544,644,755.50
  4. Step 4: Simplify right side
    1,290,604,319,909.50x = 1,308,363,677,338,659,425,615,872
  5. Step 5: Solve for x
    x = 1,308,363,677,338,659,425,615,872/1,290,604,319,909.50
  6. Step 6: Final answer
    x = 1,013,760,497,431.47

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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.