Home / 630,089,513.28-869,500,741.32-347,825,894.64

Finding the Fourth Proportional to 630,089,513.28, 869,500,741.32 and 347,825,894.64

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Solution

The fourth proportional to 630,089,513.28, 869,500,741.32 and 347,825,894.64 is: 479,987,155.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,089,513.28 : 869,500,741.32 = 347,825,894.64 : x
  2. Step 2: Convert to fraction form
    630,089,513.28/869,500,741.32 = 347,825,894.64/x
  3. Step 3: Cross multiply
    630,089,513.28x = 869,500,741.32 × 347,825,894.64
  4. Step 4: Simplify right side
    630,089,513.28x = 302,434,873,239,772,224
  5. Step 5: Solve for x
    x = 302,434,873,239,772,224/630,089,513.28
  6. Step 6: Final answer
    x = 479,987,155.58

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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.