Finding the Fourth Proportional to 689,535,516.60, 951,579,201.11 and 376,289,921.03
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Solution
The fourth proportional to 689,535,516.60, 951,579,201.11 and 376,289,921.03 is: 519,291,108.02
Step by Step Solution
- Step 1: Write the proportion equation
689,535,516.60 : 951,579,201.11 = 376,289,921.03 : x - Step 2: Convert to fraction form
689,535,516.60/951,579,201.11 = 376,289,921.03/x - Step 3: Cross multiply
689,535,516.60x = 951,579,201.11 × 376,289,921.03 - Step 4: Simplify right side
689,535,516.60x = 358,069,662,432,833,024 - Step 5: Solve for x
x = 358,069,662,432,833,024/689,535,516.60 - Step 6: Final answer
x = 519,291,108.02
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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.