Home / 66,432,139.80-99,648,209.70-30,530,347.80

Finding the Fourth Proportional to 66,432,139.80, 99,648,209.70 and 30,530,347.80

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Solution

The fourth proportional to 66,432,139.80, 99,648,209.70 and 30,530,347.80 is: 45,795,521.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,432,139.80 : 99,648,209.70 = 30,530,347.80 : x
  2. Step 2: Convert to fraction form
    66,432,139.80/99,648,209.70 = 30,530,347.80/x
  3. Step 3: Cross multiply
    66,432,139.80x = 99,648,209.70 × 30,530,347.80
  4. Step 4: Simplify right side
    66,432,139.80x = 3,042,294,499,788,334
  5. Step 5: Solve for x
    x = 3,042,294,499,788,334/66,432,139.80
  6. Step 6: Final answer
    x = 45,795,521.70

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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.