Home / 915,628,051.80-1,373,442,077.70-879,915,216.60

Finding the Fourth Proportional to 915,628,051.80, 1,373,442,077.70 and 879,915,216.60

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Solution

The fourth proportional to 915,628,051.80, 1,373,442,077.70 and 879,915,216.60 is: 1,319,872,824.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,628,051.80 : 1,373,442,077.70 = 879,915,216.60 : x
  2. Step 2: Convert to fraction form
    915,628,051.80/1,373,442,077.70 = 879,915,216.60/x
  3. Step 3: Cross multiply
    915,628,051.80x = 1,373,442,077.70 × 879,915,216.60
  4. Step 4: Simplify right side
    915,628,051.80x = 1,208,512,583,286,949,632
  5. Step 5: Solve for x
    x = 1,208,512,583,286,949,632/915,628,051.80
  6. Step 6: Final answer
    x = 1,319,872,824.90

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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.