Home / 517,428,673.80-776,143,010.70-415,392,001.80

Finding the Fourth Proportional to 517,428,673.80, 776,143,010.70 and 415,392,001.80

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Solution

The fourth proportional to 517,428,673.80, 776,143,010.70 and 415,392,001.80 is: 623,088,002.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,428,673.80 : 776,143,010.70 = 415,392,001.80 : x
  2. Step 2: Convert to fraction form
    517,428,673.80/776,143,010.70 = 415,392,001.80/x
  3. Step 3: Cross multiply
    517,428,673.80x = 776,143,010.70 × 415,392,001.80
  4. Step 4: Simplify right side
    517,428,673.80x = 322,403,598,897,751,872
  5. Step 5: Solve for x
    x = 322,403,598,897,751,872/517,428,673.80
  6. Step 6: Final answer
    x = 623,088,002.70

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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.