Home / 621,108,000.90-931,662,001.35-190,230,509.70

Finding the Fourth Proportional to 621,108,000.90, 931,662,001.35 and 190,230,509.70

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Solution

The fourth proportional to 621,108,000.90, 931,662,001.35 and 190,230,509.70 is: 285,345,764.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,108,000.90 : 931,662,001.35 = 190,230,509.70 : x
  2. Step 2: Convert to fraction form
    621,108,000.90/931,662,001.35 = 190,230,509.70/x
  3. Step 3: Cross multiply
    621,108,000.90x = 931,662,001.35 × 190,230,509.70
  4. Step 4: Simplify right side
    621,108,000.90x = 177,230,537,384,932,576
  5. Step 5: Solve for x
    x = 177,230,537,384,932,576/621,108,000.90
  6. Step 6: Final answer
    x = 285,345,764.55

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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.