Home / 121,578,633.18-167,778,272.75-65,824,038.36

Finding the Fourth Proportional to 121,578,633.18, 167,778,272.75 and 65,824,038.36

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Solution

The fourth proportional to 121,578,633.18, 167,778,272.75 and 65,824,038.36 is: 90,837,042.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,578,633.18 : 167,778,272.75 = 65,824,038.36 : x
  2. Step 2: Convert to fraction form
    121,578,633.18/167,778,272.75 = 65,824,038.36/x
  3. Step 3: Cross multiply
    121,578,633.18x = 167,778,272.75 × 65,824,038.36
  4. Step 4: Simplify right side
    121,578,633.18x = 11,043,843,461,141,422
  5. Step 5: Solve for x
    x = 11,043,843,461,141,422/121,578,633.18
  6. Step 6: Final answer
    x = 90,837,042.43

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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.