Home / 989,981,724.95-1,484,049,421.37-334,474,328.87

Finding the Fourth Proportional to 989,981,724.95, 1,484,049,421.37 and 334,474,328.87

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Solution

The fourth proportional to 989,981,724.95, 1,484,049,421.37 and 334,474,328.87 is: 501,399,593.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,981,724.95 : 1,484,049,421.37 = 334,474,328.87 : x
  2. Step 2: Convert to fraction form
    989,981,724.95/1,484,049,421.37 = 334,474,328.87/x
  3. Step 3: Cross multiply
    989,981,724.95x = 1,484,049,421.37 × 334,474,328.87
  4. Step 4: Simplify right side
    989,981,724.95x = 496,376,434,213,550,016
  5. Step 5: Solve for x
    x = 496,376,434,213,550,016/989,981,724.95
  6. Step 6: Final answer
    x = 501,399,593.25

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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.