Home / 989,385,544.80-1,483,700,403.60-299,063,368.80

Finding the Fourth Proportional to 989,385,544.80, 1,483,700,403.60 and 299,063,368.80

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Solution

The fourth proportional to 989,385,544.80, 1,483,700,403.60 and 299,063,368.80 is: 448,480,820.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,385,544.80 : 1,483,700,403.60 = 299,063,368.80 : x
  2. Step 2: Convert to fraction form
    989,385,544.80/1,483,700,403.60 = 299,063,368.80/x
  3. Step 3: Cross multiply
    989,385,544.80x = 1,483,700,403.60 × 299,063,368.80
  4. Step 4: Simplify right side
    989,385,544.80x = 443,720,440,990,535,616
  5. Step 5: Solve for x
    x = 443,720,440,990,535,616/989,385,544.80
  6. Step 6: Final answer
    x = 448,480,820.57

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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.