Home / 233,113,628.45-321,688,357.82-128,689,452.29

Finding the Fourth Proportional to 233,113,628.45, 321,688,357.82 and 128,689,452.29

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Solution

The fourth proportional to 233,113,628.45, 321,688,357.82 and 128,689,452.29 is: 177,586,779.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    233,113,628.45 : 321,688,357.82 = 128,689,452.29 : x
  2. Step 2: Convert to fraction form
    233,113,628.45/321,688,357.82 = 128,689,452.29/x
  3. Step 3: Cross multiply
    233,113,628.45x = 321,688,357.82 × 128,689,452.29
  4. Step 4: Simplify right side
    233,113,628.45x = 41,397,898,574,638,616
  5. Step 5: Solve for x
    x = 41,397,898,574,638,616/233,113,628.45
  6. Step 6: Final answer
    x = 177,586,779.68

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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.