Home / 890,958,643.20-1,336,437,964.80-482,811,955.20

Finding the Fourth Proportional to 890,958,643.20, 1,336,437,964.80 and 482,811,955.20

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Solution

The fourth proportional to 890,958,643.20, 1,336,437,964.80 and 482,811,955.20 is: 724,217,932.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,958,643.20 : 1,336,437,964.80 = 482,811,955.20 : x
  2. Step 2: Convert to fraction form
    890,958,643.20/1,336,437,964.80 = 482,811,955.20/x
  3. Step 3: Cross multiply
    890,958,643.20x = 1,336,437,964.80 × 482,811,955.20
  4. Step 4: Simplify right side
    890,958,643.20x = 645,248,226,788,596,736
  5. Step 5: Solve for x
    x = 645,248,226,788,596,736/890,958,643.20
  6. Step 6: Final answer
    x = 724,217,932.80

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Double scale
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Similar ratio
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1.5x scale

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.