Home / 122,207,866.36-168,650,051.87-66,456,547.45

Finding the Fourth Proportional to 122,207,866.36, 168,650,051.87 and 66,456,547.45

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Solution

The fourth proportional to 122,207,866.36, 168,650,051.87 and 66,456,547.45 is: 91,711,773.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,207,866.36 : 168,650,051.87 = 66,456,547.45 : x
  2. Step 2: Convert to fraction form
    122,207,866.36/168,650,051.87 = 66,456,547.45/x
  3. Step 3: Cross multiply
    122,207,866.36x = 168,650,051.87 × 66,456,547.45
  4. Step 4: Simplify right side
    122,207,866.36x = 11,207,900,174,543,618
  5. Step 5: Solve for x
    x = 11,207,900,174,543,618/122,207,866.36
  6. Step 6: Final answer
    x = 91,711,773.62

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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.