Home / 235,438,916.89-324,903,126.89-129,590,069.16

Finding the Fourth Proportional to 235,438,916.89, 324,903,126.89 and 129,590,069.16

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Solution

The fourth proportional to 235,438,916.89, 324,903,126.89 and 129,590,069.16 is: 178,832,876.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,438,916.89 : 324,903,126.89 = 129,590,069.16 : x
  2. Step 2: Convert to fraction form
    235,438,916.89/324,903,126.89 = 129,590,069.16/x
  3. Step 3: Cross multiply
    235,438,916.89x = 324,903,126.89 × 129,590,069.16
  4. Step 4: Simplify right side
    235,438,916.89x = 42,104,218,683,327,400
  5. Step 5: Solve for x
    x = 42,104,218,683,327,400/235,438,916.89
  6. Step 6: Final answer
    x = 178,832,876.23

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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.