Home / 1,328,019,950.40-1,992,029,925.60-407,894,812.80

Finding the Fourth Proportional to 1,328,019,950.40, 1,992,029,925.60 and 407,894,812.80

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Solution

The fourth proportional to 1,328,019,950.40, 1,992,029,925.60 and 407,894,812.80 is: 611,842,219.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,019,950.40 : 1,992,029,925.60 = 407,894,812.80 : x
  2. Step 2: Convert to fraction form
    1,328,019,950.40/1,992,029,925.60 = 407,894,812.80/x
  3. Step 3: Cross multiply
    1,328,019,950.40x = 1,992,029,925.60 × 407,894,812.80
  4. Step 4: Simplify right side
    1,328,019,950.40x = 812,538,673,594,609,920
  5. Step 5: Solve for x
    x = 812,538,673,594,609,920/1,328,019,950.40
  6. Step 6: Final answer
    x = 611,842,219.20

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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.