Home / 1,258,456,175.32-1,887,690,237.66-385,056,153.40

Finding the Fourth Proportional to 1,258,456,175.32, 1,887,690,237.66 and 385,056,153.40

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Solution

The fourth proportional to 1,258,456,175.32, 1,887,690,237.66 and 385,056,153.40 is: 577,586,058.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,456,175.32 : 1,887,690,237.66 = 385,056,153.40 : x
  2. Step 2: Convert to fraction form
    1,258,456,175.32/1,887,690,237.66 = 385,056,153.40/x
  3. Step 3: Cross multiply
    1,258,456,175.32x = 1,887,690,237.66 × 385,056,153.40
  4. Step 4: Simplify right side
    1,258,456,175.32x = 726,866,741,724,091,392
  5. Step 5: Solve for x
    x = 726,866,741,724,091,392/1,258,456,175.32
  6. Step 6: Final answer
    x = 577,586,058.20

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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.