Home / 72,501,988,352.16-100,039,462,010.16-40,386,551,289.12

Finding the Fourth Proportional to 72,501,988,352.16, 100,039,462,010.16 and 40,386,551,289.12

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Solution

The fourth proportional to 72,501,988,352.16, 100,039,462,010.16 and 40,386,551,289.12 is: 55,726,042,212.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,501,988,352.16 : 100,039,462,010.16 = 40,386,551,289.12 : x
  2. Step 2: Convert to fraction form
    72,501,988,352.16/100,039,462,010.16 = 40,386,551,289.12/x
  3. Step 3: Cross multiply
    72,501,988,352.16x = 100,039,462,010.16 × 40,386,551,289.12
  4. Step 4: Simplify right side
    72,501,988,352.16x = 4,040,248,863,409,299,259,392
  5. Step 5: Solve for x
    x = 4,040,248,863,409,299,259,392/72,501,988,352.16
  6. Step 6: Final answer
    x = 55,726,042,212.59

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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.