Home / 1,261,212,079.23-1,740,438,935.74-696,684,811.29

Finding the Fourth Proportional to 1,261,212,079.23, 1,740,438,935.74 and 696,684,811.29

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Solution

The fourth proportional to 1,261,212,079.23, 1,740,438,935.74 and 696,684,811.29 is: 961,406,405.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,212,079.23 : 1,740,438,935.74 = 696,684,811.29 : x
  2. Step 2: Convert to fraction form
    1,261,212,079.23/1,740,438,935.74 = 696,684,811.29/x
  3. Step 3: Cross multiply
    1,261,212,079.23x = 1,740,438,935.74 × 696,684,811.29
  4. Step 4: Simplify right side
    1,261,212,079.23x = 1,212,537,371,502,169,344
  5. Step 5: Solve for x
    x = 1,212,537,371,502,169,344/1,261,212,079.23
  6. Step 6: Final answer
    x = 961,406,405.37

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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.