Home / 565,355,106.60-780,185,353.86-317,837,561.64

Finding the Fourth Proportional to 565,355,106.60, 780,185,353.86 and 317,837,561.64

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Solution

The fourth proportional to 565,355,106.60, 780,185,353.86 and 317,837,561.64 is: 438,613,196.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,355,106.60 : 780,185,353.86 = 317,837,561.64 : x
  2. Step 2: Convert to fraction form
    565,355,106.60/780,185,353.86 = 317,837,561.64/x
  3. Step 3: Cross multiply
    565,355,106.60x = 780,185,353.86 × 317,837,561.64
  4. Step 4: Simplify right side
    565,355,106.60x = 247,972,210,498,102,944
  5. Step 5: Solve for x
    x = 247,972,210,498,102,944/565,355,106.60
  6. Step 6: Final answer
    x = 438,613,196.56

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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.