Home / 1,091,659,923.98-1,507,217,874.48-645,766,531.68

Finding the Fourth Proportional to 1,091,659,923.98, 1,507,217,874.48 and 645,766,531.68

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Solution

The fourth proportional to 1,091,659,923.98, 1,507,217,874.48 and 645,766,531.68 is: 891,587,973.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,659,923.98 : 1,507,217,874.48 = 645,766,531.68 : x
  2. Step 2: Convert to fraction form
    1,091,659,923.98/1,507,217,874.48 = 645,766,531.68/x
  3. Step 3: Cross multiply
    1,091,659,923.98x = 1,507,217,874.48 × 645,766,531.68
  4. Step 4: Simplify right side
    1,091,659,923.98x = 973,310,859,289,051,136
  5. Step 5: Solve for x
    x = 973,310,859,289,051,136/1,091,659,923.98
  6. Step 6: Final answer
    x = 891,587,973.42

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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.