Home / 139,712,506.43-192,804,549.08-76,990,847.76

Finding the Fourth Proportional to 139,712,506.43, 192,804,549.08 and 76,990,847.76

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Solution

The fourth proportional to 139,712,506.43, 192,804,549.08 and 76,990,847.76 is: 106,248,080.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,712,506.43 : 192,804,549.08 = 76,990,847.76 : x
  2. Step 2: Convert to fraction form
    139,712,506.43/192,804,549.08 = 76,990,847.76/x
  3. Step 3: Cross multiply
    139,712,506.43x = 192,804,549.08 × 76,990,847.76
  4. Step 4: Simplify right side
    139,712,506.43x = 14,844,185,685,268,774
  5. Step 5: Solve for x
    x = 14,844,185,685,268,774/139,712,506.43
  6. Step 6: Final answer
    x = 106,248,080.90

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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.