Finding the Fourth Proportional to 838,461,239.19, 1,157,081,099.04 and 486,246,058.02
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Solution
The fourth proportional to 838,461,239.19, 1,157,081,099.04 and 486,246,058.02 is: 671,022,221.33
Step by Step Solution
- Step 1: Write the proportion equation
838,461,239.19 : 1,157,081,099.04 = 486,246,058.02 : x - Step 2: Convert to fraction form
838,461,239.19/1,157,081,099.04 = 486,246,058.02/x - Step 3: Cross multiply
838,461,239.19x = 1,157,081,099.04 × 486,246,058.02 - Step 4: Simplify right side
838,461,239.19x = 562,626,123,217,649,152 - Step 5: Solve for x
x = 562,626,123,217,649,152/838,461,239.19 - Step 6: Final answer
x = 671,022,221.33
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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.