Home / 249,628,861.20-374,293,992.60-128,696,509.20

Finding the Fourth Proportional to 249,628,861.20, 374,293,992.60 and 128,696,509.20

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Solution

The fourth proportional to 249,628,861.20, 374,293,992.60 and 128,696,509.20 is: 192,967,792.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,628,861.20 : 374,293,992.60 = 128,696,509.20 : x
  2. Step 2: Convert to fraction form
    249,628,861.20/374,293,992.60 = 128,696,509.20/x
  3. Step 3: Cross multiply
    249,628,861.20x = 374,293,992.60 × 128,696,509.20
  4. Step 4: Simplify right side
    249,628,861.20x = 48,170,330,262,150,640
  5. Step 5: Solve for x
    x = 48,170,330,262,150,640/249,628,861.20
  6. Step 6: Final answer
    x = 192,967,792.39

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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.