Home / 517,428,761.93-776,143,142.89-415,392,089.93

Finding the Fourth Proportional to 517,428,761.93, 776,143,142.89 and 415,392,089.93

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Solution

The fourth proportional to 517,428,761.93, 776,143,142.89 and 415,392,089.93 is: 623,088,134.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,428,761.93 : 776,143,142.89 = 415,392,089.93 : x
  2. Step 2: Convert to fraction form
    517,428,761.93/776,143,142.89 = 415,392,089.93/x
  3. Step 3: Cross multiply
    517,428,761.93x = 776,143,142.89 × 415,392,089.93
  4. Step 4: Simplify right side
    517,428,761.93x = 322,403,722,206,035,008
  5. Step 5: Solve for x
    x = 322,403,722,206,035,008/517,428,761.93
  6. Step 6: Final answer
    x = 623,088,134.89

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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.