Home / 811,961,133.89-1,120,507,446-440,683,165.26

Finding the Fourth Proportional to 811,961,133.89, 1,120,507,446 and 440,683,165.26

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Solution

The fourth proportional to 811,961,133.89, 1,120,507,446 and 440,683,165.26 is: 608,143,354.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,961,133.89 : 1,120,507,446 = 440,683,165.26 : x
  2. Step 2: Convert to fraction form
    811,961,133.89/1,120,507,446 = 440,683,165.26/x
  3. Step 3: Cross multiply
    811,961,133.89x = 1,120,507,446 × 440,683,165.26
  4. Step 4: Simplify right side
    811,961,133.89x = 493,788,768,000,678,528
  5. Step 5: Solve for x
    x = 493,788,768,000,678,528/811,961,133.89
  6. Step 6: Final answer
    x = 608,143,354.89

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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.