Finding the Fourth Proportional to 703,658,085.36, 971,029,669.68 and 386,117,355.73
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Solution
The fourth proportional to 703,658,085.36, 971,029,669.68 and 386,117,355.73 is: 532,831,805.95
Step by Step Solution
- Step 1: Write the proportion equation
703,658,085.36 : 971,029,669.68 = 386,117,355.73 : x - Step 2: Convert to fraction form
703,658,085.36/971,029,669.68 = 386,117,355.73/x - Step 3: Cross multiply
703,658,085.36x = 971,029,669.68 × 386,117,355.73 - Step 4: Simplify right side
703,658,085.36x = 374,931,408,392,216,960 - Step 5: Solve for x
x = 374,931,408,392,216,960/703,658,085.36 - Step 6: Final answer
x = 532,831,805.95
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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.