Home / 1,086,426,642.60-1,630,065,116.70-396,403,648.20

Finding the Fourth Proportional to 1,086,426,642.60, 1,630,065,116.70 and 396,403,648.20

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Solution

The fourth proportional to 1,086,426,642.60, 1,630,065,116.70 and 396,403,648.20 is: 594,760,597.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,426,642.60 : 1,630,065,116.70 = 396,403,648.20 : x
  2. Step 2: Convert to fraction form
    1,086,426,642.60/1,630,065,116.70 = 396,403,648.20/x
  3. Step 3: Cross multiply
    1,086,426,642.60x = 1,630,065,116.70 × 396,403,648.20
  4. Step 4: Simplify right side
    1,086,426,642.60x = 646,163,759,063,438,720
  5. Step 5: Solve for x
    x = 646,163,759,063,438,720/1,086,426,642.60
  6. Step 6: Final answer
    x = 594,760,597.47

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Double scale
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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.