Home / 305,112,014.40-457,668,021.60-218,667,777.60

Finding the Fourth Proportional to 305,112,014.40, 457,668,021.60 and 218,667,777.60

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Solution

The fourth proportional to 305,112,014.40, 457,668,021.60 and 218,667,777.60 is: 328,001,666.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,112,014.40 : 457,668,021.60 = 218,667,777.60 : x
  2. Step 2: Convert to fraction form
    305,112,014.40/457,668,021.60 = 218,667,777.60/x
  3. Step 3: Cross multiply
    305,112,014.40x = 457,668,021.60 × 218,667,777.60
  4. Step 4: Simplify right side
    305,112,014.40x = 100,077,249,161,860,800
  5. Step 5: Solve for x
    x = 100,077,249,161,860,800/305,112,014.40
  6. Step 6: Final answer
    x = 328,001,666.40

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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.