Home / 30,945,944,987.88-42,705,147,368.94-17,397,642,538.20

Finding the Fourth Proportional to 30,945,944,987.88, 42,705,147,368.94 and 17,397,642,538.20

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Solution

The fourth proportional to 30,945,944,987.88, 42,705,147,368.94 and 17,397,642,538.20 is: 24,008,602,379.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,945,944,987.88 : 42,705,147,368.94 = 17,397,642,538.20 : x
  2. Step 2: Convert to fraction form
    30,945,944,987.88/42,705,147,368.94 = 17,397,642,538.20/x
  3. Step 3: Cross multiply
    30,945,944,987.88x = 42,705,147,368.94 × 17,397,642,538.20
  4. Step 4: Simplify right side
    30,945,944,987.88x = 742,968,888,465,970,429,952
  5. Step 5: Solve for x
    x = 742,968,888,465,970,429,952/30,945,944,987.88
  6. Step 6: Final answer
    x = 24,008,602,379.31

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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.