Home / 98,415,072.80-147,622,609.20-72,905,904.80

Finding the Fourth Proportional to 98,415,072.80, 147,622,609.20 and 72,905,904.80

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Solution

The fourth proportional to 98,415,072.80, 147,622,609.20 and 72,905,904.80 is: 109,358,857.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,415,072.80 : 147,622,609.20 = 72,905,904.80 : x
  2. Step 2: Convert to fraction form
    98,415,072.80/147,622,609.20 = 72,905,904.80/x
  3. Step 3: Cross multiply
    98,415,072.80x = 147,622,609.20 × 72,905,904.80
  4. Step 4: Simplify right side
    98,415,072.80x = 10,762,559,892,662,802
  5. Step 5: Solve for x
    x = 10,762,559,892,662,802/98,415,072.80
  6. Step 6: Final answer
    x = 109,358,857.20

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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.