Home / 186,605,205.56-257,642,688.30-120,685,254.20

Finding the Fourth Proportional to 186,605,205.56, 257,642,688.30 and 120,685,254.20

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Solution

The fourth proportional to 186,605,205.56, 257,642,688.30 and 120,685,254.20 is: 166,628,113.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,605,205.56 : 257,642,688.30 = 120,685,254.20 : x
  2. Step 2: Convert to fraction form
    186,605,205.56/257,642,688.30 = 120,685,254.20/x
  3. Step 3: Cross multiply
    186,605,205.56x = 257,642,688.30 × 120,685,254.20
  4. Step 4: Simplify right side
    186,605,205.56x = 31,093,673,330,256,868
  5. Step 5: Solve for x
    x = 31,093,673,330,256,868/186,605,205.56
  6. Step 6: Final answer
    x = 166,628,113.28

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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.