Home / 201,205,407.40-301,808,111.10-109,372,402.60

Finding the Fourth Proportional to 201,205,407.40, 301,808,111.10 and 109,372,402.60

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Solution

The fourth proportional to 201,205,407.40, 301,808,111.10 and 109,372,402.60 is: 164,058,603.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,205,407.40 : 301,808,111.10 = 109,372,402.60 : x
  2. Step 2: Convert to fraction form
    201,205,407.40/301,808,111.10 = 109,372,402.60/x
  3. Step 3: Cross multiply
    201,205,407.40x = 301,808,111.10 × 109,372,402.60
  4. Step 4: Simplify right side
    201,205,407.40x = 33,009,478,235,174,728
  5. Step 5: Solve for x
    x = 33,009,478,235,174,728/201,205,407.40
  6. Step 6: Final answer
    x = 164,058,603.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.