Home / 830,521,330.35-1,245,781,995.53-400,539,634.35

Finding the Fourth Proportional to 830,521,330.35, 1,245,781,995.53 and 400,539,634.35

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Solution

The fourth proportional to 830,521,330.35, 1,245,781,995.53 and 400,539,634.35 is: 600,809,451.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,521,330.35 : 1,245,781,995.53 = 400,539,634.35 : x
  2. Step 2: Convert to fraction form
    830,521,330.35/1,245,781,995.53 = 400,539,634.35/x
  3. Step 3: Cross multiply
    830,521,330.35x = 1,245,781,995.53 × 400,539,634.35
  4. Step 4: Simplify right side
    830,521,330.35x = 498,985,064,967,396,928
  5. Step 5: Solve for x
    x = 498,985,064,967,396,928/830,521,330.35
  6. Step 6: Final answer
    x = 600,809,451.53

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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.