Home / 915,624,010.80-1,373,436,016.20-879,911,175.60

Finding the Fourth Proportional to 915,624,010.80, 1,373,436,016.20 and 879,911,175.60

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Solution

The fourth proportional to 915,624,010.80, 1,373,436,016.20 and 879,911,175.60 is: 1,319,866,763.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,624,010.80 : 1,373,436,016.20 = 879,911,175.60 : x
  2. Step 2: Convert to fraction form
    915,624,010.80/1,373,436,016.20 = 879,911,175.60/x
  3. Step 3: Cross multiply
    915,624,010.80x = 1,373,436,016.20 × 879,911,175.60
  4. Step 4: Simplify right side
    915,624,010.80x = 1,208,501,699,625,922,816
  5. Step 5: Solve for x
    x = 1,208,501,699,625,922,816/915,624,010.80
  6. Step 6: Final answer
    x = 1,319,866,763.40

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1.5x scale

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.