Home / 399,089,145.60-598,185,820.80-169,019,078.40

Finding the Fourth Proportional to 399,089,145.60, 598,185,820.80 and 169,019,078.40

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Solution

The fourth proportional to 399,089,145.60, 598,185,820.80 and 169,019,078.40 is: 253,338,927.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,089,145.60 : 598,185,820.80 = 169,019,078.40 : x
  2. Step 2: Convert to fraction form
    399,089,145.60/598,185,820.80 = 169,019,078.40/x
  3. Step 3: Cross multiply
    399,089,145.60x = 598,185,820.80 × 169,019,078.40
  4. Step 4: Simplify right side
    399,089,145.60x = 101,104,816,143,563,552
  5. Step 5: Solve for x
    x = 101,104,816,143,563,552/399,089,145.60
  6. Step 6: Final answer
    x = 253,338,927.55

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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.