Home / 66,401,424.80-99,602,137.20-20,957,314.40

Finding the Fourth Proportional to 66,401,424.80, 99,602,137.20 and 20,957,314.40

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Solution

The fourth proportional to 66,401,424.80, 99,602,137.20 and 20,957,314.40 is: 31,435,971.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,401,424.80 : 99,602,137.20 = 20,957,314.40 : x
  2. Step 2: Convert to fraction form
    66,401,424.80/99,602,137.20 = 20,957,314.40/x
  3. Step 3: Cross multiply
    66,401,424.80x = 99,602,137.20 × 20,957,314.40
  4. Step 4: Simplify right side
    66,401,424.80x = 2,087,393,304,212,335.50
  5. Step 5: Solve for x
    x = 2,087,393,304,212,335.50/66,401,424.80
  6. Step 6: Final answer
    x = 31,435,971.60

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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.