Finding the Fourth Proportional to 152,590,442.20, 228,885,663.30 and 135,868,931.80
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Solution
The fourth proportional to 152,590,442.20, 228,885,663.30 and 135,868,931.80 is: 203,803,397.70
Step by Step Solution
- Step 1: Write the proportion equation
152,590,442.20 : 228,885,663.30 = 135,868,931.80 : x - Step 2: Convert to fraction form
152,590,442.20/228,885,663.30 = 135,868,931.80/x - Step 3: Cross multiply
152,590,442.20x = 228,885,663.30 × 135,868,931.80 - Step 4: Simplify right side
152,590,442.20x = 31,098,450,576,905,468 - Step 5: Solve for x
x = 31,098,450,576,905,468/152,590,442.20 - Step 6: Final answer
x = 203,803,397.70
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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.