Home / 235,438,916.16-324,903,125.96-129,590,068.40

Finding the Fourth Proportional to 235,438,916.16, 324,903,125.96 and 129,590,068.40

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Solution

The fourth proportional to 235,438,916.16, 324,903,125.96 and 129,590,068.40 is: 178,832,875.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,438,916.16 : 324,903,125.96 = 129,590,068.40 : x
  2. Step 2: Convert to fraction form
    235,438,916.16/324,903,125.96 = 129,590,068.40/x
  3. Step 3: Cross multiply
    235,438,916.16x = 324,903,125.96 × 129,590,068.40
  4. Step 4: Simplify right side
    235,438,916.16x = 42,104,218,316,530,216
  5. Step 5: Solve for x
    x = 42,104,218,316,530,216/235,438,916.16
  6. Step 6: Final answer
    x = 178,832,875.22

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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.