Home / 145,242,015.20-200,434,055.72-82,518,223.70

Finding the Fourth Proportional to 145,242,015.20, 200,434,055.72 and 82,518,223.70

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Solution

The fourth proportional to 145,242,015.20, 200,434,055.72 and 82,518,223.70 is: 113,875,191.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,242,015.20 : 200,434,055.72 = 82,518,223.70 : x
  2. Step 2: Convert to fraction form
    145,242,015.20/200,434,055.72 = 82,518,223.70/x
  3. Step 3: Cross multiply
    145,242,015.20x = 200,434,055.72 × 82,518,223.70
  4. Step 4: Simplify right side
    145,242,015.20x = 16,539,462,247,089,718
  5. Step 5: Solve for x
    x = 16,539,462,247,089,718/145,242,015.20
  6. Step 6: Final answer
    x = 113,875,191.17

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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.