Finding the Fourth Proportional to 38,927,902.98, 53,718,335.55 and 21,523,202.94
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Solution
The fourth proportional to 38,927,902.98, 53,718,335.55 and 21,523,202.94 is: 29,700,819.96
Step by Step Solution
- Step 1: Write the proportion equation
38,927,902.98 : 53,718,335.55 = 21,523,202.94 : x - Step 2: Convert to fraction form
38,927,902.98/53,718,335.55 = 21,523,202.94/x - Step 3: Cross multiply
38,927,902.98x = 53,718,335.55 × 21,523,202.94 - Step 4: Simplify right side
38,927,902.98x = 1,156,190,637,641,666.50 - Step 5: Solve for x
x = 1,156,190,637,641,666.50/38,927,902.98 - Step 6: Final answer
x = 29,700,819.96
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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.