Home / 121,660,547.80-167,890,837.38-65,907,030.79

Finding the Fourth Proportional to 121,660,547.80, 167,890,837.38 and 65,907,030.79

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Solution

The fourth proportional to 121,660,547.80, 167,890,837.38 and 65,907,030.79 is: 90,951,313.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,660,547.80 : 167,890,837.38 = 65,907,030.79 : x
  2. Step 2: Convert to fraction form
    121,660,547.80/167,890,837.38 = 65,907,030.79/x
  3. Step 3: Cross multiply
    121,660,547.80x = 167,890,837.38 × 65,907,030.79
  4. Step 4: Simplify right side
    121,660,547.80x = 11,065,186,588,562,542
  5. Step 5: Solve for x
    x = 11,065,186,588,562,542/121,660,547.80
  6. Step 6: Final answer
    x = 90,951,313.21

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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.