Finding the Fourth Proportional to 450,948,813.84, 622,088,222.58 and 391,326,427.44
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Solution
The fourth proportional to 450,948,813.84, 622,088,222.58 and 391,326,427.44 is: 539,838,567.53
Step by Step Solution
- Step 1: Write the proportion equation
450,948,813.84 : 622,088,222.58 = 391,326,427.44 : x - Step 2: Convert to fraction form
450,948,813.84/622,088,222.58 = 391,326,427.44/x - Step 3: Cross multiply
450,948,813.84x = 622,088,222.58 × 391,326,427.44 - Step 4: Simplify right side
450,948,813.84x = 243,439,561,694,730,944 - Step 5: Solve for x
x = 243,439,561,694,730,944/450,948,813.84 - Step 6: Final answer
x = 539,838,567.53
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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.