Home / 66,452,830.60-99,669,914.70-21,019,217.80

Finding the Fourth Proportional to 66,452,830.60, 99,669,914.70 and 21,019,217.80

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Solution

The fourth proportional to 66,452,830.60, 99,669,914.70 and 21,019,217.80 is: 31,525,875.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,452,830.60 : 99,669,914.70 = 21,019,217.80 : x
  2. Step 2: Convert to fraction form
    66,452,830.60/99,669,914.70 = 21,019,217.80/x
  3. Step 3: Cross multiply
    66,452,830.60x = 99,669,914.70 × 21,019,217.80
  4. Step 4: Simplify right side
    66,452,830.60x = 2,094,983,645,186,721.75
  5. Step 5: Solve for x
    x = 2,094,983,645,186,721.75/66,452,830.60
  6. Step 6: Final answer
    x = 31,525,875.22

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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.