Home / 287,451,628.40-431,240,428.20-93,330,009.20

Finding the Fourth Proportional to 287,451,628.40, 431,240,428.20 and 93,330,009.20

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Solution

The fourth proportional to 287,451,628.40, 431,240,428.20 and 93,330,009.20 is: 140,015,464.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,451,628.40 : 431,240,428.20 = 93,330,009.20 : x
  2. Step 2: Convert to fraction form
    287,451,628.40/431,240,428.20 = 93,330,009.20/x
  3. Step 3: Cross multiply
    287,451,628.40x = 431,240,428.20 × 93,330,009.20
  4. Step 4: Simplify right side
    287,451,628.40x = 40,247,673,131,317,936
  5. Step 5: Solve for x
    x = 40,247,673,131,317,936/287,451,628.40
  6. Step 6: Final answer
    x = 140,015,464.01

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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.