Finding the Fourth Proportional to 817,374,821.58, 1,226,538,079.37 and 344,644,212.01
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Solution
The fourth proportional to 817,374,821.58, 1,226,538,079.37 and 344,644,212.01 is: 517,166,957.81
Step by Step Solution
- Step 1: Write the proportion equation
817,374,821.58 : 1,226,538,079.37 = 344,644,212.01 : x - Step 2: Convert to fraction form
817,374,821.58/1,226,538,079.37 = 344,644,212.01/x - Step 3: Cross multiply
817,374,821.58x = 1,226,538,079.37 × 344,644,212.01 - Step 4: Simplify right side
817,374,821.58x = 422,719,249,863,009,280 - Step 5: Solve for x
x = 422,719,249,863,009,280/817,374,821.58 - Step 6: Final answer
x = 517,166,957.81
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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.