Finding the Fourth Proportional to 416,831,509.61, 624,458,063.49 and 278,239,220.09
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Solution
The fourth proportional to 416,831,509.61, 624,458,063.49 and 278,239,220.09 is: 416,832,030.59
Step by Step Solution
- Step 1: Write the proportion equation
416,831,509.61 : 624,458,063.49 = 278,239,220.09 : x - Step 2: Convert to fraction form
416,831,509.61/624,458,063.49 = 278,239,220.09/x - Step 3: Cross multiply
416,831,509.61x = 624,458,063.49 × 278,239,220.09 - Step 4: Simplify right side
416,831,509.61x = 173,748,724,564,369,280 - Step 5: Solve for x
x = 173,748,724,564,369,280/416,831,509.61 - Step 6: Final answer
x = 416,832,030.59
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.