Home / 368,780,001.20-553,170,001.80-185,113,991.60

Finding the Fourth Proportional to 368,780,001.20, 553,170,001.80 and 185,113,991.60

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Solution

The fourth proportional to 368,780,001.20, 553,170,001.80 and 185,113,991.60 is: 277,670,987.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,780,001.20 : 553,170,001.80 = 185,113,991.60 : x
  2. Step 2: Convert to fraction form
    368,780,001.20/553,170,001.80 = 185,113,991.60/x
  3. Step 3: Cross multiply
    368,780,001.20x = 553,170,001.80 × 185,113,991.60
  4. Step 4: Simplify right side
    368,780,001.20x = 102,399,507,066,577,168
  5. Step 5: Solve for x
    x = 102,399,507,066,577,168/368,780,001.20
  6. Step 6: Final answer
    x = 277,670,987.40

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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.