Home / 315,699,807.08-435,449,562.63-205,840,323.56

Finding the Fourth Proportional to 315,699,807.08, 435,449,562.63 and 205,840,323.56

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Solution

The fourth proportional to 315,699,807.08, 435,449,562.63 and 205,840,323.56 is: 283,918,700.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,699,807.08 : 435,449,562.63 = 205,840,323.56 : x
  2. Step 2: Convert to fraction form
    315,699,807.08/435,449,562.63 = 205,840,323.56/x
  3. Step 3: Cross multiply
    315,699,807.08x = 435,449,562.63 × 205,840,323.56
  4. Step 4: Simplify right side
    315,699,807.08x = 89,633,078,866,136,416
  5. Step 5: Solve for x
    x = 89,633,078,866,136,416/315,699,807.08
  6. Step 6: Final answer
    x = 283,918,700.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.