Home / 143,068,598.50-197,423,409.72-81,188,936.86

Finding the Fourth Proportional to 143,068,598.50, 197,423,409.72 and 81,188,936.86

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Solution

The fourth proportional to 143,068,598.50, 197,423,409.72 and 81,188,936.86 is: 112,034,345.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,068,598.50 : 197,423,409.72 = 81,188,936.86 : x
  2. Step 2: Convert to fraction form
    143,068,598.50/197,423,409.72 = 81,188,936.86/x
  3. Step 3: Cross multiply
    143,068,598.50x = 197,423,409.72 × 81,188,936.86
  4. Step 4: Simplify right side
    143,068,598.50x = 16,028,596,746,442,990
  5. Step 5: Solve for x
    x = 16,028,596,746,442,990/143,068,598.50
  6. Step 6: Final answer
    x = 112,034,345.16

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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.