Finding the Fourth Proportional to 7,298,192,142,398.40, 10,071,515,129,990 and 3,961,022,955,291.20
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Solution
The fourth proportional to 7,298,192,142,398.40, 10,071,515,129,990 and 3,961,022,955,291.20 is: 5,466,217,091,311.45
Step by Step Solution
- Step 1: Write the proportion equation
7,298,192,142,398.40 : 10,071,515,129,990 = 3,961,022,955,291.20 : x - Step 2: Convert to fraction form
7,298,192,142,398.40/10,071,515,129,990 = 3,961,022,955,291.20/x - Step 3: Cross multiply
7,298,192,142,398.40x = 10,071,515,129,990 × 3,961,022,955,291.20 - Step 4: Simplify right side
7,298,192,142,398.40x = 39,893,502,624,453,028,904,697,856 - Step 5: Solve for x
x = 39,893,502,624,453,028,904,697,856/7,298,192,142,398.40 - Step 6: Final answer
x = 5,466,217,091,311.45
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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.