Home / 66,214,904.80-99,326,555.52-20,778,492.64

Finding the Fourth Proportional to 66,214,904.80, 99,326,555.52 and 20,778,492.64

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Solution

The fourth proportional to 66,214,904.80, 99,326,555.52 and 20,778,492.64 is: 31,169,056.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,214,904.80 : 99,326,555.52 = 20,778,492.64 : x
  2. Step 2: Convert to fraction form
    66,214,904.80/99,326,555.52 = 20,778,492.64/x
  3. Step 3: Cross multiply
    66,214,904.80x = 99,326,555.52 × 20,778,492.64
  4. Step 4: Simplify right side
    66,214,904.80x = 2,063,856,102,828,871.25
  5. Step 5: Solve for x
    x = 2,063,856,102,828,871.25/66,214,904.80
  6. Step 6: Final answer
    x = 31,169,056.41

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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.