Home / 1,913,918,295.25-2,870,877,439.64-459,895,719.25

Finding the Fourth Proportional to 1,913,918,295.25, 2,870,877,439.64 and 459,895,719.25

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Solution

The fourth proportional to 1,913,918,295.25, 2,870,877,439.64 and 459,895,719.25 is: 689,843,578.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913,918,295.25 : 2,870,877,439.64 = 459,895,719.25 : x
  2. Step 2: Convert to fraction form
    1,913,918,295.25/2,870,877,439.64 = 459,895,719.25/x
  3. Step 3: Cross multiply
    1,913,918,295.25x = 2,870,877,439.64 × 459,895,719.25
  4. Step 4: Simplify right side
    1,913,918,295.25x = 1,320,304,244,979,536,896
  5. Step 5: Solve for x
    x = 1,320,304,244,979,536,896/1,913,918,295.25
  6. Step 6: Final answer
    x = 689,843,578.10

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Double scale
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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.