Finding the Fourth Proportional to 354,347,430.84, 489,043,618.74 and 205,636,621.32
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Solution
The fourth proportional to 354,347,430.84, 489,043,618.74 and 205,636,621.32 is: 283,804,166.99
Step by Step Solution
- Step 1: Write the proportion equation
354,347,430.84 : 489,043,618.74 = 205,636,621.32 : x - Step 2: Convert to fraction form
354,347,430.84/489,043,618.74 = 205,636,621.32/x - Step 3: Cross multiply
354,347,430.84x = 489,043,618.74 × 205,636,621.32 - Step 4: Simplify right side
354,347,430.84x = 100,565,277,435,799,840 - Step 5: Solve for x
x = 100,565,277,435,799,840/354,347,430.84 - Step 6: Final answer
x = 283,804,166.99
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.