Home / 1,125,215,981.87-1,552,798,055.00-630,178,690.37

Finding the Fourth Proportional to 1,125,215,981.87, 1,552,798,055.00 and 630,178,690.37

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Solution

The fourth proportional to 1,125,215,981.87, 1,552,798,055.00 and 630,178,690.37 is: 869,646,592.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,215,981.87 : 1,552,798,055.00 = 630,178,690.37 : x
  2. Step 2: Convert to fraction form
    1,125,215,981.87/1,552,798,055.00 = 630,178,690.37/x
  3. Step 3: Cross multiply
    1,125,215,981.87x = 1,552,798,055.00 × 630,178,690.37
  4. Step 4: Simplify right side
    1,125,215,981.87x = 978,540,244,705,832,320
  5. Step 5: Solve for x
    x = 978,540,244,705,832,320/1,125,215,981.87
  6. Step 6: Final answer
    x = 869,646,592.72

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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.