Finding the Fourth Proportional to 930,362,399.48, 1,283,908,720.68 and 512,689,631.12
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Solution
The fourth proportional to 930,362,399.48, 1,283,908,720.68 and 512,689,631.12 is: 707,516,435.28
Step by Step Solution
- Step 1: Write the proportion equation
930,362,399.48 : 1,283,908,720.68 = 512,689,631.12 : x - Step 2: Convert to fraction form
930,362,399.48/1,283,908,720.68 = 512,689,631.12/x - Step 3: Cross multiply
930,362,399.48x = 1,283,908,720.68 × 512,689,631.12 - Step 4: Simplify right side
930,362,399.48x = 658,246,688,397,180,416 - Step 5: Solve for x
x = 658,246,688,397,180,416/930,362,399.48 - Step 6: Final answer
x = 707,516,435.28
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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.