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Finding the Fourth Proportional to 285,352,674.88, 427,729,790.88 and 139,585,023.04

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Solution

The fourth proportional to 285,352,674.88, 427,729,790.88 and 139,585,023.04 is: 209,231,165.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,352,674.88 : 427,729,790.88 = 139,585,023.04 : x
  2. Step 2: Convert to fraction form
    285,352,674.88/427,729,790.88 = 139,585,023.04/x
  3. Step 3: Cross multiply
    285,352,674.88x = 427,729,790.88 × 139,585,023.04
  4. Step 4: Simplify right side
    285,352,674.88x = 59,704,672,714,879,176
  5. Step 5: Solve for x
    x = 59,704,672,714,879,176/285,352,674.88
  6. Step 6: Final answer
    x = 209,231,165.40

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.