Home / 7,097,774,789.72-9,794,271,885.72-3,925,890,438.68

Finding the Fourth Proportional to 7,097,774,789.72, 9,794,271,885.72 and 3,925,890,438.68

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Solution

The fourth proportional to 7,097,774,789.72, 9,794,271,885.72 and 3,925,890,438.68 is: 5,417,365,229.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,097,774,789.72 : 9,794,271,885.72 = 3,925,890,438.68 : x
  2. Step 2: Convert to fraction form
    7,097,774,789.72/9,794,271,885.72 = 3,925,890,438.68/x
  3. Step 3: Cross multiply
    7,097,774,789.72x = 9,794,271,885.72 × 3,925,890,438.68
  4. Step 4: Simplify right side
    7,097,774,789.72x = 38,451,238,349,980,475,392
  5. Step 5: Solve for x
    x = 38,451,238,349,980,475,392/7,097,774,789.72
  6. Step 6: Final answer
    x = 5,417,365,229.12

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1.5x scale

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.