Home / 72,998,726,347.87-100,736,909,024.31-40,445,821,261.96

Finding the Fourth Proportional to 72,998,726,347.87, 100,736,909,024.31 and 40,445,821,261.96

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Solution

The fourth proportional to 72,998,726,347.87, 100,736,909,024.31 and 40,445,821,261.96 is: 55,814,494,590.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,998,726,347.87 : 100,736,909,024.31 = 40,445,821,261.96 : x
  2. Step 2: Convert to fraction form
    72,998,726,347.87/100,736,909,024.31 = 40,445,821,261.96/x
  3. Step 3: Cross multiply
    72,998,726,347.87x = 100,736,909,024.31 × 40,445,821,261.96
  4. Step 4: Simplify right side
    72,998,726,347.87x = 4,074,387,016,879,567,273,984
  5. Step 5: Solve for x
    x = 4,074,387,016,879,567,273,984/72,998,726,347.87
  6. Step 6: Final answer
    x = 55,814,494,590.81

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1.5x scale

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.