Finding the Fourth Proportional to 906,994,556,395.95, 1,251,690,513,300 and 521,619,203,140.56
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Solution
The fourth proportional to 906,994,556,395.95, 1,251,690,513,300 and 521,619,203,140.56 is: 719,856,369,061.95
Step by Step Solution
- Step 1: Write the proportion equation
906,994,556,395.95 : 1,251,690,513,300 = 521,619,203,140.56 : x - Step 2: Convert to fraction form
906,994,556,395.95/1,251,690,513,300 = 521,619,203,140.56/x - Step 3: Cross multiply
906,994,556,395.95x = 1,251,690,513,300 × 521,619,203,140.56 - Step 4: Simplify right side
906,994,556,395.95x = 652,905,808,126,144,489,193,472 - Step 5: Solve for x
x = 652,905,808,126,144,489,193,472/906,994,556,395.95 - Step 6: Final answer
x = 719,856,369,061.95
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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.