Home / 378,712,686,223.40-522,617,047,943.85-205,096,418,654.26

Finding the Fourth Proportional to 378,712,686,223.40, 522,617,047,943.85 and 205,096,418,654.26

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Solution

The fourth proportional to 378,712,686,223.40, 522,617,047,943.85 and 205,096,418,654.26 is: 283,029,559,769.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,712,686,223.40 : 522,617,047,943.85 = 205,096,418,654.26 : x
  2. Step 2: Convert to fraction form
    378,712,686,223.40/522,617,047,943.85 = 205,096,418,654.26/x
  3. Step 3: Cross multiply
    378,712,686,223.40x = 522,617,047,943.85 × 205,096,418,654.26
  4. Step 4: Simplify right side
    378,712,686,223.40x = 107,186,884,860,945,337,679,872
  5. Step 5: Solve for x
    x = 107,186,884,860,945,337,679,872/378,712,686,223.40
  6. Step 6: Final answer
    x = 283,029,559,769.53

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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.