Home / 1,298,638,917.12-1,792,073,675.96-703,910,632.32

Finding the Fourth Proportional to 1,298,638,917.12, 1,792,073,675.96 and 703,910,632.32

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Solution

The fourth proportional to 1,298,638,917.12, 1,792,073,675.96 and 703,910,632.32 is: 971,370,638.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,638,917.12 : 1,792,073,675.96 = 703,910,632.32 : x
  2. Step 2: Convert to fraction form
    1,298,638,917.12/1,792,073,675.96 = 703,910,632.32/x
  3. Step 3: Cross multiply
    1,298,638,917.12x = 1,792,073,675.96 × 703,910,632.32
  4. Step 4: Simplify right side
    1,298,638,917.12x = 1,261,459,714,409,030,400
  5. Step 5: Solve for x
    x = 1,261,459,714,409,030,400/1,298,638,917.12
  6. Step 6: Final answer
    x = 971,370,638.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.