Home / 72,168,438.12-99,496,096.56-57,332,986.44

Finding the Fourth Proportional to 72,168,438.12, 99,496,096.56 and 57,332,986.44

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Solution

The fourth proportional to 72,168,438.12, 99,496,096.56 and 57,332,986.44 is: 79,042,979.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,168,438.12 : 99,496,096.56 = 57,332,986.44 : x
  2. Step 2: Convert to fraction form
    72,168,438.12/99,496,096.56 = 57,332,986.44/x
  3. Step 3: Cross multiply
    72,168,438.12x = 99,496,096.56 × 57,332,986.44
  4. Step 4: Simplify right side
    72,168,438.12x = 5,704,408,354,907,411
  5. Step 5: Solve for x
    x = 5,704,408,354,907,411/72,168,438.12
  6. Step 6: Final answer
    x = 79,042,979.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.