Home / 1,248,214,242.45-1,721,706,047.16-802,741,131.51

Finding the Fourth Proportional to 1,248,214,242.45, 1,721,706,047.16 and 802,741,131.51

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Solution

The fourth proportional to 1,248,214,242.45, 1,721,706,047.16 and 802,741,131.51 is: 1,107,249,231.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248,214,242.45 : 1,721,706,047.16 = 802,741,131.51 : x
  2. Step 2: Convert to fraction form
    1,248,214,242.45/1,721,706,047.16 = 802,741,131.51/x
  3. Step 3: Cross multiply
    1,248,214,242.45x = 1,721,706,047.16 × 802,741,131.51
  4. Step 4: Simplify right side
    1,248,214,242.45x = 1,382,084,260,424,827,904
  5. Step 5: Solve for x
    x = 1,382,084,260,424,827,904/1,248,214,242.45
  6. Step 6: Final answer
    x = 1,107,249,231.28

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Half scale
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Double scale
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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.