Home / 1,258,456,468.41-1,887,760,368.54-385,065,403.52

Finding the Fourth Proportional to 1,258,456,468.41, 1,887,760,368.54 and 385,065,403.52

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Solution

The fourth proportional to 1,258,456,468.41, 1,887,760,368.54 and 385,065,403.52 is: 577,621,257.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,456,468.41 : 1,887,760,368.54 = 385,065,403.52 : x
  2. Step 2: Convert to fraction form
    1,258,456,468.41/1,887,760,368.54 = 385,065,403.52/x
  3. Step 3: Cross multiply
    1,258,456,468.41x = 1,887,760,368.54 × 385,065,403.52
  4. Step 4: Simplify right side
    1,258,456,468.41x = 726,911,208,051,480,192
  5. Step 5: Solve for x
    x = 726,911,208,051,480,192/1,258,456,468.41
  6. Step 6: Final answer
    x = 577,621,257.71

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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.