Home / 139,347,520.16-192,288,684.66-77,464,090.40

Finding the Fourth Proportional to 139,347,520.16, 192,288,684.66 and 77,464,090.40

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Solution

The fourth proportional to 139,347,520.16, 192,288,684.66 and 77,464,090.40 is: 106,894,389.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,347,520.16 : 192,288,684.66 = 77,464,090.40 : x
  2. Step 2: Convert to fraction form
    139,347,520.16/192,288,684.66 = 77,464,090.40/x
  3. Step 3: Cross multiply
    139,347,520.16x = 192,288,684.66 × 77,464,090.40
  4. Step 4: Simplify right side
    139,347,520.16x = 14,895,468,051,399,334
  5. Step 5: Solve for x
    x = 14,895,468,051,399,334/139,347,520.16
  6. Step 6: Final answer
    x = 106,894,389.18

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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.