Home / 261,794,421.60-392,689,202.40-100,236,357.60

Finding the Fourth Proportional to 261,794,421.60, 392,689,202.40 and 100,236,357.60

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Solution

The fourth proportional to 261,794,421.60, 392,689,202.40 and 100,236,357.60 is: 150,353,606.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,794,421.60 : 392,689,202.40 = 100,236,357.60 : x
  2. Step 2: Convert to fraction form
    261,794,421.60/392,689,202.40 = 100,236,357.60/x
  3. Step 3: Cross multiply
    261,794,421.60x = 392,689,202.40 × 100,236,357.60
  4. Step 4: Simplify right side
    261,794,421.60x = 39,361,735,317,425,176
  5. Step 5: Solve for x
    x = 39,361,735,317,425,176/261,794,421.60
  6. Step 6: Final answer
    x = 150,353,606.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.