Finding the Fourth Proportional to 1,371,606,409.99, 1,892,868,875.01 and 768,788,175.26
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Solution
The fourth proportional to 1,371,606,409.99, 1,892,868,875.01 and 768,788,175.26 is: 1,060,956,844.35
Step by Step Solution
- Step 1: Write the proportion equation
1,371,606,409.99 : 1,892,868,875.01 = 768,788,175.26 : x - Step 2: Convert to fraction form
1,371,606,409.99/1,892,868,875.01 = 768,788,175.26/x - Step 3: Cross multiply
1,371,606,409.99x = 1,892,868,875.01 × 768,788,175.26 - Step 4: Simplify right side
1,371,606,409.99x = 1,455,215,208,430,119,168 - Step 5: Solve for x
x = 1,455,215,208,430,119,168/1,371,606,409.99 - Step 6: Final answer
x = 1,060,956,844.35
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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.