Home / 904,410,289.60-1,248,356,853.60-528,168,366.72

Finding the Fourth Proportional to 904,410,289.60, 1,248,356,853.60 and 528,168,366.72

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Solution

The fourth proportional to 904,410,289.60, 1,248,356,853.60 and 528,168,366.72 is: 729,030,405.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    904,410,289.60 : 1,248,356,853.60 = 528,168,366.72 : x
  2. Step 2: Convert to fraction form
    904,410,289.60/1,248,356,853.60 = 528,168,366.72/x
  3. Step 3: Cross multiply
    904,410,289.60x = 1,248,356,853.60 × 528,168,366.72
  4. Step 4: Simplify right side
    904,410,289.60x = 659,342,600,449,630,080
  5. Step 5: Solve for x
    x = 659,342,600,449,630,080/904,410,289.60
  6. Step 6: Final answer
    x = 729,030,405.81

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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.