Home / 630,189,638.28-869,662,904.54-347,932,625.40

Finding the Fourth Proportional to 630,189,638.28, 869,662,904.54 and 347,932,625.40

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Solution

The fourth proportional to 630,189,638.28, 869,662,904.54 and 347,932,625.40 is: 480,147,687.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,189,638.28 : 869,662,904.54 = 347,932,625.40 : x
  2. Step 2: Convert to fraction form
    630,189,638.28/869,662,904.54 = 347,932,625.40/x
  3. Step 3: Cross multiply
    630,189,638.28x = 869,662,904.54 × 347,932,625.40
  4. Step 4: Simplify right side
    630,189,638.28x = 302,584,097,587,852,096
  5. Step 5: Solve for x
    x = 302,584,097,587,852,096/630,189,638.28
  6. Step 6: Final answer
    x = 480,147,687.63

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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.