Home / 1,125,215,982.24-1,552,798,055.52-630,178,690.74

Finding the Fourth Proportional to 1,125,215,982.24, 1,552,798,055.52 and 630,178,690.74

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Solution

The fourth proportional to 1,125,215,982.24, 1,552,798,055.52 and 630,178,690.74 is: 869,646,593.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,215,982.24 : 1,552,798,055.52 = 630,178,690.74 : x
  2. Step 2: Convert to fraction form
    1,125,215,982.24/1,552,798,055.52 = 630,178,690.74/x
  3. Step 3: Cross multiply
    1,125,215,982.24x = 1,552,798,055.52 × 630,178,690.74
  4. Step 4: Simplify right side
    1,125,215,982.24x = 978,540,245,611,211,392
  5. Step 5: Solve for x
    x = 978,540,245,611,211,392/1,125,215,982.24
  6. Step 6: Final answer
    x = 869,646,593.24

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1.5x scale

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.