Home / 555,138,764.26-766,089,430.41-307,619,921.14

Finding the Fourth Proportional to 555,138,764.26, 766,089,430.41 and 307,619,921.14

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Solution

The fourth proportional to 555,138,764.26, 766,089,430.41 and 307,619,921.14 is: 424,514,347.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,138,764.26 : 766,089,430.41 = 307,619,921.14 : x
  2. Step 2: Convert to fraction form
    555,138,764.26/766,089,430.41 = 307,619,921.14/x
  3. Step 3: Cross multiply
    555,138,764.26x = 766,089,430.41 × 307,619,921.14
  4. Step 4: Simplify right side
    555,138,764.26x = 235,664,370,168,911,712
  5. Step 5: Solve for x
    x = 235,664,370,168,911,712/555,138,764.26
  6. Step 6: Final answer
    x = 424,514,347.30

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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.