Home / 149,689,582.56-206,572,472.64-83,612,862.72

Finding the Fourth Proportional to 149,689,582.56, 206,572,472.64 and 83,612,862.72

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Solution

The fourth proportional to 149,689,582.56, 206,572,472.64 and 83,612,862.72 is: 115,386,224.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,689,582.56 : 206,572,472.64 = 83,612,862.72 : x
  2. Step 2: Convert to fraction form
    149,689,582.56/206,572,472.64 = 83,612,862.72/x
  3. Step 3: Cross multiply
    149,689,582.56x = 206,572,472.64 × 83,612,862.72
  4. Step 4: Simplify right side
    149,689,582.56x = 17,272,115,796,579,274
  5. Step 5: Solve for x
    x = 17,272,115,796,579,274/149,689,582.56
  6. Step 6: Final answer
    x = 115,386,224.62

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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.