Home / 921,980,263.51-1,382,972,757.22-376,721,797.51

Finding the Fourth Proportional to 921,980,263.51, 1,382,972,757.22 and 376,721,797.51

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Solution

The fourth proportional to 921,980,263.51, 1,382,972,757.22 and 376,721,797.51 is: 565,083,661.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,980,263.51 : 1,382,972,757.22 = 376,721,797.51 : x
  2. Step 2: Convert to fraction form
    921,980,263.51/1,382,972,757.22 = 376,721,797.51/x
  3. Step 3: Cross multiply
    921,980,263.51x = 1,382,972,757.22 × 376,721,797.51
  4. Step 4: Simplify right side
    921,980,263.51x = 520,995,983,000,364,352
  5. Step 5: Solve for x
    x = 520,995,983,000,364,352/921,980,263.51
  6. Step 6: Final answer
    x = 565,083,661.36

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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.