Home / 621,035,666.96-931,454,779.25-206,478,007.16

Finding the Fourth Proportional to 621,035,666.96, 931,454,779.25 and 206,478,007.16

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Solution

The fourth proportional to 621,035,666.96, 931,454,779.25 and 206,478,007.16 is: 309,684,188.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,035,666.96 : 931,454,779.25 = 206,478,007.16 : x
  2. Step 2: Convert to fraction form
    621,035,666.96/931,454,779.25 = 206,478,007.16/x
  3. Step 3: Cross multiply
    621,035,666.96x = 931,454,779.25 × 206,478,007.16
  4. Step 4: Simplify right side
    621,035,666.96x = 192,324,926,575,056,640
  5. Step 5: Solve for x
    x = 192,324,926,575,056,640/621,035,666.96
  6. Step 6: Final answer
    x = 309,684,188.54

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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.