Home / 778,091,832.72-1,165,267,574.34-445,089,243.66

Finding the Fourth Proportional to 778,091,832.72, 1,165,267,574.34 and 445,089,243.66

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Solution

The fourth proportional to 778,091,832.72, 1,165,267,574.34 and 445,089,243.66 is: 666,564,075.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,091,832.72 : 1,165,267,574.34 = 445,089,243.66 : x
  2. Step 2: Convert to fraction form
    778,091,832.72/1,165,267,574.34 = 445,089,243.66/x
  3. Step 3: Cross multiply
    778,091,832.72x = 1,165,267,574.34 × 445,089,243.66
  4. Step 4: Simplify right side
    778,091,832.72x = 518,648,063,324,513,408
  5. Step 5: Solve for x
    x = 518,648,063,324,513,408/778,091,832.72
  6. Step 6: Final answer
    x = 666,564,075.75

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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.