Home / 139,983,688.65-193,146,573.69-81,212,316.96

Finding the Fourth Proportional to 139,983,688.65, 193,146,573.69 and 81,212,316.96

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Solution

The fourth proportional to 139,983,688.65, 193,146,573.69 and 81,212,316.96 is: 112,055,060.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,983,688.65 : 193,146,573.69 = 81,212,316.96 : x
  2. Step 2: Convert to fraction form
    139,983,688.65/193,146,573.69 = 81,212,316.96/x
  3. Step 3: Cross multiply
    139,983,688.65x = 193,146,573.69 × 81,212,316.96
  4. Step 4: Simplify right side
    139,983,688.65x = 15,685,880,762,250,276
  5. Step 5: Solve for x
    x = 15,685,880,762,250,276/139,983,688.65
  6. Step 6: Final answer
    x = 112,055,060.94

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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.