Home / 990,862,486.26-1,485,311,980.43-465,290,763.14

Finding the Fourth Proportional to 990,862,486.26, 1,485,311,980.43 and 465,290,763.14

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Solution

The fourth proportional to 990,862,486.26, 1,485,311,980.43 and 465,290,763.14 is: 697,475,133.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,862,486.26 : 1,485,311,980.43 = 465,290,763.14 : x
  2. Step 2: Convert to fraction form
    990,862,486.26/1,485,311,980.43 = 465,290,763.14/x
  3. Step 3: Cross multiply
    990,862,486.26x = 1,485,311,980.43 × 465,290,763.14
  4. Step 4: Simplify right side
    990,862,486.26x = 691,101,944,867,832,960
  5. Step 5: Solve for x
    x = 691,101,944,867,832,960/990,862,486.26
  6. Step 6: Final answer
    x = 697,475,133.48

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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.