Finding the Fourth Proportional to 929,747,221.38, 1,283,109,193.71 and 512,059,395.96
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Solution
The fourth proportional to 929,747,221.38, 1,283,109,193.71 and 512,059,395.96 is: 706,673,925.53
Step by Step Solution
- Step 1: Write the proportion equation
929,747,221.38 : 1,283,109,193.71 = 512,059,395.96 : x - Step 2: Convert to fraction form
929,747,221.38/1,283,109,193.71 = 512,059,395.96/x - Step 3: Cross multiply
929,747,221.38x = 1,283,109,193.71 × 512,059,395.96 - Step 4: Simplify right side
929,747,221.38x = 657,028,118,681,865,216 - Step 5: Solve for x
x = 657,028,118,681,865,216/929,747,221.38 - Step 6: Final answer
x = 706,673,925.53
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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.