Finding the Fourth Proportional to 19,490,006.70, 29,172,024.45 and 15,206,985.90
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Solution
The fourth proportional to 19,490,006.70, 29,172,024.45 and 15,206,985.90 is: 22,761,334.63
Step by Step Solution
- Step 1: Write the proportion equation
19,490,006.70 : 29,172,024.45 = 15,206,985.90 : x - Step 2: Convert to fraction form
19,490,006.70/29,172,024.45 = 15,206,985.90/x - Step 3: Cross multiply
19,490,006.70x = 29,172,024.45 × 15,206,985.90 - Step 4: Simplify right side
19,490,006.70x = 443,618,564,485,605.25 - Step 5: Solve for x
x = 443,618,564,485,605.25/19,490,006.70 - Step 6: Final answer
x = 22,761,334.63
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.