Home / 138,686,628.61-208,043,706.44-51,271,059.25

Finding the Fourth Proportional to 138,686,628.61, 208,043,706.44 and 51,271,059.25

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Solution

The fourth proportional to 138,686,628.61, 208,043,706.44 and 51,271,059.25 is: 76,911,677.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,686,628.61 : 208,043,706.44 = 51,271,059.25 : x
  2. Step 2: Convert to fraction form
    138,686,628.61/208,043,706.44 = 51,271,059.25/x
  3. Step 3: Cross multiply
    138,686,628.61x = 208,043,706.44 × 51,271,059.25
  4. Step 4: Simplify right side
    138,686,628.61x = 10,666,621,199,474,846
  5. Step 5: Solve for x
    x = 10,666,621,199,474,846/138,686,628.61
  6. Step 6: Final answer
    x = 76,911,677.11

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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.