Home / 206,772,579.36-310,195,756.98-68,606,477.28

Finding the Fourth Proportional to 206,772,579.36, 310,195,756.98 and 68,606,477.28

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Solution

The fourth proportional to 206,772,579.36, 310,195,756.98 and 68,606,477.28 is: 102,921,955.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,772,579.36 : 310,195,756.98 = 68,606,477.28 : x
  2. Step 2: Convert to fraction form
    206,772,579.36/310,195,756.98 = 68,606,477.28/x
  3. Step 3: Cross multiply
    206,772,579.36x = 310,195,756.98 × 68,606,477.28
  4. Step 4: Simplify right side
    206,772,579.36x = 21,281,438,153,600,772
  5. Step 5: Solve for x
    x = 21,281,438,153,600,772/206,772,579.36
  6. Step 6: Final answer
    x = 102,921,955.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.