Finding the Fourth Proportional to 19,403,377.20, 29,129,027.40 and 12,214,897.20
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Solution
The fourth proportional to 19,403,377.20, 29,129,027.40 and 12,214,897.20 is: 18,337,430.21
Step by Step Solution
- Step 1: Write the proportion equation
19,403,377.20 : 29,129,027.40 = 12,214,897.20 : x - Step 2: Convert to fraction form
19,403,377.20/29,129,027.40 = 12,214,897.20/x - Step 3: Cross multiply
19,403,377.20x = 29,129,027.40 × 12,214,897.20 - Step 4: Simplify right side
19,403,377.20x = 355,808,075,226,983.25 - Step 5: Solve for x
x = 355,808,075,226,983.25/19,403,377.20 - Step 6: Final answer
x = 18,337,430.21
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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.