Home / 773,806,006.28-1,067,852,355.90-421,381,891.64

Finding the Fourth Proportional to 773,806,006.28, 1,067,852,355.90 and 421,381,891.64

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Solution

The fourth proportional to 773,806,006.28, 1,067,852,355.90 and 421,381,891.64 is: 581,507,047.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    773,806,006.28 : 1,067,852,355.90 = 421,381,891.64 : x
  2. Step 2: Convert to fraction form
    773,806,006.28/1,067,852,355.90 = 421,381,891.64/x
  3. Step 3: Cross multiply
    773,806,006.28x = 1,067,852,355.90 × 421,381,891.64
  4. Step 4: Simplify right side
    773,806,006.28x = 449,973,645,721,372,480
  5. Step 5: Solve for x
    x = 449,973,645,721,372,480/773,806,006.28
  6. Step 6: Final answer
    x = 581,507,047.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.