Finding the Fourth Proportional to 906,994,556,394.94, 1,251,690,513,298.70 and 521,619,203,139.54
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Solution
The fourth proportional to 906,994,556,394.94, 1,251,690,513,298.70 and 521,619,203,139.54 is: 719,856,369,060.60
Step by Step Solution
- Step 1: Write the proportion equation
906,994,556,394.94 : 1,251,690,513,298.70 = 521,619,203,139.54 : x - Step 2: Convert to fraction form
906,994,556,394.94/1,251,690,513,298.70 = 521,619,203,139.54/x - Step 3: Cross multiply
906,994,556,394.94x = 1,251,690,513,298.70 × 521,619,203,139.54 - Step 4: Simplify right side
906,994,556,394.94x = 652,905,808,124,189,607,985,152 - Step 5: Solve for x
x = 652,905,808,124,189,607,985,152/906,994,556,394.94 - Step 6: Final answer
x = 719,856,369,060.60
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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.