Home / 555,138,762.76-766,089,428.34-307,619,919.64

Finding the Fourth Proportional to 555,138,762.76, 766,089,428.34 and 307,619,919.64

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Solution

The fourth proportional to 555,138,762.76, 766,089,428.34 and 307,619,919.64 is: 424,514,345.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,138,762.76 : 766,089,428.34 = 307,619,919.64 : x
  2. Step 2: Convert to fraction form
    555,138,762.76/766,089,428.34 = 307,619,919.64/x
  3. Step 3: Cross multiply
    555,138,762.76x = 766,089,428.34 × 307,619,919.64
  4. Step 4: Simplify right side
    555,138,762.76x = 235,664,368,383,004,352
  5. Step 5: Solve for x
    x = 235,664,368,383,004,352/555,138,762.76
  6. Step 6: Final answer
    x = 424,514,345.23

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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.