Home / 1,258,456,475.93-1,887,760,379.79-385,065,411.03

Finding the Fourth Proportional to 1,258,456,475.93, 1,887,760,379.79 and 385,065,411.03

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Solution

The fourth proportional to 1,258,456,475.93, 1,887,760,379.79 and 385,065,411.03 is: 577,621,268.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,456,475.93 : 1,887,760,379.79 = 385,065,411.03 : x
  2. Step 2: Convert to fraction form
    1,258,456,475.93/1,887,760,379.79 = 385,065,411.03/x
  3. Step 3: Cross multiply
    1,258,456,475.93x = 1,887,760,379.79 × 385,065,411.03
  4. Step 4: Simplify right side
    1,258,456,475.93x = 726,911,226,569,985,152
  5. Step 5: Solve for x
    x = 726,911,226,569,985,152/1,258,456,475.93
  6. Step 6: Final answer
    x = 577,621,268.97

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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.