Finding the Fourth Proportional to 853,884,913.08, 1,178,362,187.82 and 462,744,337.08
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Solution
The fourth proportional to 853,884,913.08, 1,178,362,187.82 and 462,744,337.08 is: 638,587,731.31
Step by Step Solution
- Step 1: Write the proportion equation
853,884,913.08 : 1,178,362,187.82 = 462,744,337.08 : x - Step 2: Convert to fraction form
853,884,913.08/1,178,362,187.82 = 462,744,337.08/x - Step 3: Cross multiply
853,884,913.08x = 1,178,362,187.82 × 462,744,337.08 - Step 4: Simplify right side
853,884,913.08x = 545,280,429,442,904,320 - Step 5: Solve for x
x = 545,280,429,442,904,320/853,884,913.08 - Step 6: Final answer
x = 638,587,731.31
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1.5x scale
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.