Home / 318,919,136.20-478,080,105.90-249,793,606.60

Finding the Fourth Proportional to 318,919,136.20, 478,080,105.90 and 249,793,606.60

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Solution

The fourth proportional to 318,919,136.20, 478,080,105.90 and 249,793,606.60 is: 374,456,532.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,919,136.20 : 478,080,105.90 = 249,793,606.60 : x
  2. Step 2: Convert to fraction form
    318,919,136.20/478,080,105.90 = 249,793,606.60/x
  3. Step 3: Cross multiply
    318,919,136.20x = 478,080,105.90 × 249,793,606.60
  4. Step 4: Simplify right side
    318,919,136.20x = 119,421,353,896,470,928
  5. Step 5: Solve for x
    x = 119,421,353,896,470,928/318,919,136.20
  6. Step 6: Final answer
    x = 374,456,532.52

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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.