Home / 505,513,705.60-758,270,558.40-413,680,700.80

Finding the Fourth Proportional to 505,513,705.60, 758,270,558.40 and 413,680,700.80

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Solution

The fourth proportional to 505,513,705.60, 758,270,558.40 and 413,680,700.80 is: 620,521,051.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,513,705.60 : 758,270,558.40 = 413,680,700.80 : x
  2. Step 2: Convert to fraction form
    505,513,705.60/758,270,558.40 = 413,680,700.80/x
  3. Step 3: Cross multiply
    505,513,705.60x = 758,270,558.40 × 413,680,700.80
  4. Step 4: Simplify right side
    505,513,705.60x = 313,681,895,994,919,296
  5. Step 5: Solve for x
    x = 313,681,895,994,919,296/505,513,705.60
  6. Step 6: Final answer
    x = 620,521,051.20

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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.