Home / 811,971,590.61-1,120,531,544.51-440,698,072.53

Finding the Fourth Proportional to 811,971,590.61, 1,120,531,544.51 and 440,698,072.53

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Solution

The fourth proportional to 811,971,590.61, 1,120,531,544.51 and 440,698,072.53 is: 608,169,174.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,971,590.61 : 1,120,531,544.51 = 440,698,072.53 : x
  2. Step 2: Convert to fraction form
    811,971,590.61/1,120,531,544.51 = 440,698,072.53/x
  3. Step 3: Cross multiply
    811,971,590.61x = 1,120,531,544.51 × 440,698,072.53
  4. Step 4: Simplify right side
    811,971,590.61x = 493,816,091,872,417,408
  5. Step 5: Solve for x
    x = 493,816,091,872,417,408/811,971,590.61
  6. Step 6: Final answer
    x = 608,169,174.37

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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.