Home / 1,286,774,415.27-1,929,280,457.52-655,284,091.64

Finding the Fourth Proportional to 1,286,774,415.27, 1,929,280,457.52 and 655,284,091.64

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Solution

The fourth proportional to 1,286,774,415.27, 1,929,280,457.52 and 655,284,091.64 is: 982,477,407.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,774,415.27 : 1,929,280,457.52 = 655,284,091.64 : x
  2. Step 2: Convert to fraction form
    1,286,774,415.27/1,929,280,457.52 = 655,284,091.64/x
  3. Step 3: Cross multiply
    1,286,774,415.27x = 1,929,280,457.52 × 655,284,091.64
  4. Step 4: Simplify right side
    1,286,774,415.27x = 1,264,226,792,115,150,336
  5. Step 5: Solve for x
    x = 1,264,226,792,115,150,336/1,286,774,415.27
  6. Step 6: Final answer
    x = 982,477,407.94

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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.