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Finding the Fourth Proportional to 1,355,630,679.87, 1,870,667,670.69 and 760,800,283.14

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Solution

The fourth proportional to 1,355,630,679.87, 1,870,667,670.69 and 760,800,283.14 is: 1,049,846,772.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355,630,679.87 : 1,870,667,670.69 = 760,800,283.14 : x
  2. Step 2: Convert to fraction form
    1,355,630,679.87/1,870,667,670.69 = 760,800,283.14/x
  3. Step 3: Cross multiply
    1,355,630,679.87x = 1,870,667,670.69 × 760,800,283.14
  4. Step 4: Simplify right side
    1,355,630,679.87x = 1,423,204,493,521,796,352
  5. Step 5: Solve for x
    x = 1,423,204,493,521,796,352/1,355,630,679.87
  6. Step 6: Final answer
    x = 1,049,846,772.17

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Find fourth proportional to 1,355,630,680.87, 1,870,667,672.07 and 760,800,284.14
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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.