Home / 157,254,988.37-217,012,541.49-86,689,049.54

Finding the Fourth Proportional to 157,254,988.37, 217,012,541.49 and 86,689,049.54

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Solution

The fourth proportional to 157,254,988.37, 217,012,541.49 and 86,689,049.54 is: 119,631,250.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,254,988.37 : 217,012,541.49 = 86,689,049.54 : x
  2. Step 2: Convert to fraction form
    157,254,988.37/217,012,541.49 = 86,689,049.54/x
  3. Step 3: Cross multiply
    157,254,988.37x = 217,012,541.49 × 86,689,049.54
  4. Step 4: Simplify right side
    157,254,988.37x = 18,812,610,958,942,852
  5. Step 5: Solve for x
    x = 18,812,610,958,942,852/157,254,988.37
  6. Step 6: Final answer
    x = 119,631,250.84

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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.