Home / 128,946,219.40-193,419,329.10-43,845,675.40

Finding the Fourth Proportional to 128,946,219.40, 193,419,329.10 and 43,845,675.40

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Solution

The fourth proportional to 128,946,219.40, 193,419,329.10 and 43,845,675.40 is: 65,768,513.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,946,219.40 : 193,419,329.10 = 43,845,675.40 : x
  2. Step 2: Convert to fraction form
    128,946,219.40/193,419,329.10 = 43,845,675.40/x
  3. Step 3: Cross multiply
    128,946,219.40x = 193,419,329.10 × 43,845,675.40
  4. Step 4: Simplify right side
    128,946,219.40x = 8,480,601,119,804,374
  5. Step 5: Solve for x
    x = 8,480,601,119,804,374/128,946,219.40
  6. Step 6: Final answer
    x = 65,768,513.10

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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.