Home / 234,289,204.12-323,312,094.57-128,438,999.27

Finding the Fourth Proportional to 234,289,204.12, 323,312,094.57 and 128,438,999.27

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Solution

The fourth proportional to 234,289,204.12, 323,312,094.57 and 128,438,999.27 is: 177,241,977.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,289,204.12 : 323,312,094.57 = 128,438,999.27 : x
  2. Step 2: Convert to fraction form
    234,289,204.12/323,312,094.57 = 128,438,999.27/x
  3. Step 3: Cross multiply
    234,289,204.12x = 323,312,094.57 × 128,438,999.27
  4. Step 4: Simplify right side
    234,289,204.12x = 41,525,881,878,458,400
  5. Step 5: Solve for x
    x = 41,525,881,878,458,400/234,289,204.12
  6. Step 6: Final answer
    x = 177,241,977.64

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1.5x scale

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.