Home / 1,240,944,146.88-1,712,502,504.96-684,036,494.16

Finding the Fourth Proportional to 1,240,944,146.88, 1,712,502,504.96 and 684,036,494.16

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Solution

The fourth proportional to 1,240,944,146.88, 1,712,502,504.96 and 684,036,494.16 is: 943,970,131.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,944,146.88 : 1,712,502,504.96 = 684,036,494.16 : x
  2. Step 2: Convert to fraction form
    1,240,944,146.88/1,712,502,504.96 = 684,036,494.16/x
  3. Step 3: Cross multiply
    1,240,944,146.88x = 1,712,502,504.96 × 684,036,494.16
  4. Step 4: Simplify right side
    1,240,944,146.88x = 1,171,414,209,733,056,256
  5. Step 5: Solve for x
    x = 1,171,414,209,733,056,256/1,240,944,146.88
  6. Step 6: Final answer
    x = 943,970,131.68

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Double scale
Find fourth proportional to 1,240,944,147.88, 1,712,502,506.34 and 684,036,495.16
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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.