Finding the Fourth Proportional to 947,297,574.79, 1,307,204,289.46 and 550,792,434.09
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Solution
The fourth proportional to 947,297,574.79, 1,307,204,289.46 and 550,792,434.09 is: 760,054,972.81
Step by Step Solution
- Step 1: Write the proportion equation
947,297,574.79 : 1,307,204,289.46 = 550,792,434.09 : x - Step 2: Convert to fraction form
947,297,574.79/1,307,204,289.46 = 550,792,434.09/x - Step 3: Cross multiply
947,297,574.79x = 1,307,204,289.46 × 550,792,434.09 - Step 4: Simplify right side
947,297,574.79x = 719,998,232,450,180,352 - Step 5: Solve for x
x = 719,998,232,450,180,352/947,297,574.79 - Step 6: Final answer
x = 760,054,972.81
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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.