Home / 745,580,775.66-1,028,902,604.14-415,548,828.78

Finding the Fourth Proportional to 745,580,775.66, 1,028,902,604.14 and 415,548,828.78

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Solution

The fourth proportional to 745,580,775.66, 1,028,902,604.14 and 415,548,828.78 is: 573,458,015.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,580,775.66 : 1,028,902,604.14 = 415,548,828.78 : x
  2. Step 2: Convert to fraction form
    745,580,775.66/1,028,902,604.14 = 415,548,828.78/x
  3. Step 3: Cross multiply
    745,580,775.66x = 1,028,902,604.14 × 415,548,828.78
  4. Step 4: Simplify right side
    745,580,775.66x = 427,559,272,079,068,928
  5. Step 5: Solve for x
    x = 427,559,272,079,068,928/745,580,775.66
  6. Step 6: Final answer
    x = 573,458,015.60

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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.