Home / 66,142,712.76-99,207,653.69-20,084,980.23

Finding the Fourth Proportional to 66,142,712.76, 99,207,653.69 and 20,084,980.23

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Solution

The fourth proportional to 66,142,712.76, 99,207,653.69 and 20,084,980.23 is: 30,125,522.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,142,712.76 : 99,207,653.69 = 20,084,980.23 : x
  2. Step 2: Convert to fraction form
    66,142,712.76/99,207,653.69 = 20,084,980.23/x
  3. Step 3: Cross multiply
    66,142,712.76x = 99,207,653.69 × 20,084,980.23
  4. Step 4: Simplify right side
    66,142,712.76x = 1,992,583,763,078,549
  5. Step 5: Solve for x
    x = 1,992,583,763,078,549/66,142,712.76
  6. Step 6: Final answer
    x = 30,125,522.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.