Home / 990,160,215.30-1,485,240,322.95-878,238,740.70

Finding the Fourth Proportional to 990,160,215.30, 1,485,240,322.95 and 878,238,740.70

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Solution

The fourth proportional to 990,160,215.30, 1,485,240,322.95 and 878,238,740.70 is: 1,317,358,111.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,160,215.30 : 1,485,240,322.95 = 878,238,740.70 : x
  2. Step 2: Convert to fraction form
    990,160,215.30/1,485,240,322.95 = 878,238,740.70/x
  3. Step 3: Cross multiply
    990,160,215.30x = 1,485,240,322.95 × 878,238,740.70
  4. Step 4: Simplify right side
    990,160,215.30x = 1,304,395,590,864,469,504
  5. Step 5: Solve for x
    x = 1,304,395,590,864,469,504/990,160,215.30
  6. Step 6: Final answer
    x = 1,317,358,111.05

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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.