Home / 845,187,514.80-1,267,781,272.20-518,670,164.40

Finding the Fourth Proportional to 845,187,514.80, 1,267,781,272.20 and 518,670,164.40

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Solution

The fourth proportional to 845,187,514.80, 1,267,781,272.20 and 518,670,164.40 is: 778,005,246.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,187,514.80 : 1,267,781,272.20 = 518,670,164.40 : x
  2. Step 2: Convert to fraction form
    845,187,514.80/1,267,781,272.20 = 518,670,164.40/x
  3. Step 3: Cross multiply
    845,187,514.80x = 1,267,781,272.20 × 518,670,164.40
  4. Step 4: Simplify right side
    845,187,514.80x = 657,560,320,875,215,104
  5. Step 5: Solve for x
    x = 657,560,320,875,215,104/845,187,514.80
  6. Step 6: Final answer
    x = 778,005,246.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.