Home / 154,806,999.45-213,585,563.64-87,814,916.55

Finding the Fourth Proportional to 154,806,999.45, 213,585,563.64 and 87,814,916.55

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Solution

The fourth proportional to 154,806,999.45, 213,585,563.64 and 87,814,916.55 is: 121,157,302.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,806,999.45 : 213,585,563.64 = 87,814,916.55 : x
  2. Step 2: Convert to fraction form
    154,806,999.45/213,585,563.64 = 87,814,916.55/x
  3. Step 3: Cross multiply
    154,806,999.45x = 213,585,563.64 × 87,814,916.55
  4. Step 4: Simplify right side
    154,806,999.45x = 18,755,998,447,331,312
  5. Step 5: Solve for x
    x = 18,755,998,447,331,312/154,806,999.45
  6. Step 6: Final answer
    x = 121,157,302.41

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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.