Home / 66,857,664-100,293,868.80-21,408,775.68

Finding the Fourth Proportional to 66,857,664, 100,293,868.80 and 21,408,775.68

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Solution

The fourth proportional to 66,857,664, 100,293,868.80 and 21,408,775.68 is: 32,115,524.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,857,664 : 100,293,868.80 = 21,408,775.68 : x
  2. Step 2: Convert to fraction form
    66,857,664/100,293,868.80 = 21,408,775.68/x
  3. Step 3: Cross multiply
    66,857,664x = 100,293,868.80 × 21,408,775.68
  4. Step 4: Simplify right side
    66,857,664x = 2,147,168,939,218,550.75
  5. Step 5: Solve for x
    x = 2,147,168,939,218,550.75/66,857,664
  6. Step 6: Final answer
    x = 32,115,524.40

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1.5x scale

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.