Home / 1,913,918,318-2,870,877,473.78-459,895,742

Finding the Fourth Proportional to 1,913,918,318, 2,870,877,473.78 and 459,895,742

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Solution

The fourth proportional to 1,913,918,318, 2,870,877,473.78 and 459,895,742 is: 689,843,612.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913,918,318 : 2,870,877,473.78 = 459,895,742 : x
  2. Step 2: Convert to fraction form
    1,913,918,318/2,870,877,473.78 = 459,895,742/x
  3. Step 3: Cross multiply
    1,913,918,318x = 2,870,877,473.78 × 459,895,742
  4. Step 4: Simplify right side
    1,913,918,318x = 1,320,304,325,995,138,816
  5. Step 5: Solve for x
    x = 1,320,304,325,995,138,816/1,913,918,318
  6. Step 6: Final answer
    x = 689,843,612.23

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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.