Finding the Fourth Proportional to 832,477,105.68, 1,248,792,417.60 and 272,241,840.84
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Solution
The fourth proportional to 832,477,105.68, 1,248,792,417.60 and 272,241,840.84 is: 408,387,863.49
Step by Step Solution
- Step 1: Write the proportion equation
832,477,105.68 : 1,248,792,417.60 = 272,241,840.84 : x - Step 2: Convert to fraction form
832,477,105.68/1,248,792,417.60 = 272,241,840.84/x - Step 3: Cross multiply
832,477,105.68x = 1,248,792,417.60 × 272,241,840.84 - Step 4: Simplify right side
832,477,105.68x = 339,973,546,594,457,984 - Step 5: Solve for x
x = 339,973,546,594,457,984/832,477,105.68 - Step 6: Final answer
x = 408,387,863.49
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.