Home / 879,433,289.60-1,320,451,636.80-492,029,859.20

Finding the Fourth Proportional to 879,433,289.60, 1,320,451,636.80 and 492,029,859.20

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Solution

The fourth proportional to 879,433,289.60, 1,320,451,636.80 and 492,029,859.20 is: 738,773,071.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,433,289.60 : 1,320,451,636.80 = 492,029,859.20 : x
  2. Step 2: Convert to fraction form
    879,433,289.60/1,320,451,636.80 = 492,029,859.20/x
  3. Step 3: Cross multiply
    879,433,289.60x = 1,320,451,636.80 × 492,029,859.20
  4. Step 4: Simplify right side
    879,433,289.60x = 649,701,632,935,113,472
  5. Step 5: Solve for x
    x = 649,701,632,935,113,472/879,433,289.60
  6. Step 6: Final answer
    x = 738,773,071.95

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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.