Home / 413,705,019.80-620,557,529.70-291,261,013.40

Finding the Fourth Proportional to 413,705,019.80, 620,557,529.70 and 291,261,013.40

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Solution

The fourth proportional to 413,705,019.80, 620,557,529.70 and 291,261,013.40 is: 436,891,520.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,705,019.80 : 620,557,529.70 = 291,261,013.40 : x
  2. Step 2: Convert to fraction form
    413,705,019.80/620,557,529.70 = 291,261,013.40/x
  3. Step 3: Cross multiply
    413,705,019.80x = 620,557,529.70 × 291,261,013.40
  4. Step 4: Simplify right side
    413,705,019.80x = 180,744,214,973,422,592
  5. Step 5: Solve for x
    x = 180,744,214,973,422,592/413,705,019.80
  6. Step 6: Final answer
    x = 436,891,520.10

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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.