Home / 98,415,064.80-147,622,597.20-72,905,896.80

Finding the Fourth Proportional to 98,415,064.80, 147,622,597.20 and 72,905,896.80

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Solution

The fourth proportional to 98,415,064.80, 147,622,597.20 and 72,905,896.80 is: 109,358,845.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,415,064.80 : 147,622,597.20 = 72,905,896.80 : x
  2. Step 2: Convert to fraction form
    98,415,064.80/147,622,597.20 = 72,905,896.80/x
  3. Step 3: Cross multiply
    98,415,064.80x = 147,622,597.20 × 72,905,896.80
  4. Step 4: Simplify right side
    98,415,064.80x = 10,762,557,836,811,168
  5. Step 5: Solve for x
    x = 10,762,557,836,811,168/98,415,064.80
  6. Step 6: Final answer
    x = 109,358,845.20

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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.