Finding the Fourth Proportional to 129,024,177.80, 193,536,266.70 and 115,885,848.20
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Solution
The fourth proportional to 129,024,177.80, 193,536,266.70 and 115,885,848.20 is: 173,828,772.30
Step by Step Solution
- Step 1: Write the proportion equation
129,024,177.80 : 193,536,266.70 = 115,885,848.20 : x - Step 2: Convert to fraction form
129,024,177.80/193,536,266.70 = 115,885,848.20/x - Step 3: Cross multiply
129,024,177.80x = 193,536,266.70 × 115,885,848.20 - Step 4: Simplify right side
129,024,177.80x = 22,428,114,423,990,916 - Step 5: Solve for x
x = 22,428,114,423,990,916/129,024,177.80 - Step 6: Final answer
x = 173,828,772.30
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.