Finding the Fourth Proportional to 372,638,590.08, 514,243,363.20 and 216,098,641.92
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Solution
The fourth proportional to 372,638,590.08, 514,243,363.20 and 216,098,641.92 is: 298,217,348.83
Step by Step Solution
- Step 1: Write the proportion equation
372,638,590.08 : 514,243,363.20 = 216,098,641.92 : x - Step 2: Convert to fraction form
372,638,590.08/514,243,363.20 = 216,098,641.92/x - Step 3: Cross multiply
372,638,590.08x = 514,243,363.20 × 216,098,641.92 - Step 4: Simplify right side
372,638,590.08x = 111,127,292,403,893,296 - Step 5: Solve for x
x = 111,127,292,403,893,296/372,638,590.08 - Step 6: Final answer
x = 298,217,348.83
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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.