Home / 1,245,251,081.26-1,718,449,955.64-680,742,784.22

Finding the Fourth Proportional to 1,245,251,081.26, 1,718,449,955.64 and 680,742,784.22

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Solution

The fourth proportional to 1,245,251,081.26, 1,718,449,955.64 and 680,742,784.22 is: 939,426,935.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,251,081.26 : 1,718,449,955.64 = 680,742,784.22 : x
  2. Step 2: Convert to fraction form
    1,245,251,081.26/1,718,449,955.64 = 680,742,784.22/x
  3. Step 3: Cross multiply
    1,245,251,081.26x = 1,718,449,955.64 × 680,742,784.22
  4. Step 4: Simplify right side
    1,245,251,081.26x = 1,169,822,407,345,109,248
  5. Step 5: Solve for x
    x = 1,169,822,407,345,109,248/1,245,251,081.26
  6. Step 6: Final answer
    x = 939,426,935.62

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1.5x scale

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.