Home / 235,438,904.28-324,903,109.39-129,590,056.51

Finding the Fourth Proportional to 235,438,904.28, 324,903,109.39 and 129,590,056.51

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Solution

The fourth proportional to 235,438,904.28, 324,903,109.39 and 129,590,056.51 is: 178,832,858.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,438,904.28 : 324,903,109.39 = 129,590,056.51 : x
  2. Step 2: Convert to fraction form
    235,438,904.28/324,903,109.39 = 129,590,056.51/x
  3. Step 3: Cross multiply
    235,438,904.28x = 324,903,109.39 × 129,590,056.51
  4. Step 4: Simplify right side
    235,438,904.28x = 42,104,212,306,124,808
  5. Step 5: Solve for x
    x = 42,104,212,306,124,808/235,438,904.28
  6. Step 6: Final answer
    x = 178,832,858.72

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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.