Home / 147,128,562.72-203,043,715.92-81,938,466.72

Finding the Fourth Proportional to 147,128,562.72, 203,043,715.92 and 81,938,466.72

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Solution

The fourth proportional to 147,128,562.72, 203,043,715.92 and 81,938,466.72 is: 113,078,592.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,128,562.72 : 203,043,715.92 = 81,938,466.72 : x
  2. Step 2: Convert to fraction form
    147,128,562.72/203,043,715.92 = 81,938,466.72/x
  3. Step 3: Cross multiply
    147,128,562.72x = 203,043,715.92 × 81,938,466.72
  4. Step 4: Simplify right side
    147,128,562.72x = 16,637,090,759,616,052
  5. Step 5: Solve for x
    x = 16,637,090,759,616,052/147,128,562.72
  6. Step 6: Final answer
    x = 113,078,592.30

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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.