Finding the Fourth Proportional to 256,018,890.03, 353,306,068.68 and 138,544,220.19
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Solution
The fourth proportional to 256,018,890.03, 353,306,068.68 and 138,544,220.19 is: 191,191,024.10
Step by Step Solution
- Step 1: Write the proportion equation
256,018,890.03 : 353,306,068.68 = 138,544,220.19 : x - Step 2: Convert to fraction form
256,018,890.03/353,306,068.68 = 138,544,220.19/x - Step 3: Cross multiply
256,018,890.03x = 353,306,068.68 × 138,544,220.19 - Step 4: Simplify right side
256,018,890.03x = 48,948,513,773,665,184 - Step 5: Solve for x
x = 48,948,513,773,665,184/256,018,890.03 - Step 6: Final answer
x = 191,191,024.10
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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.