Finding the Fourth Proportional to 139,910,306.21, 209,804,509.05 and 74,317,089.95
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Solution
The fourth proportional to 139,910,306.21, 209,804,509.05 and 74,317,089.95 is: 111,443,259.56
Step by Step Solution
- Step 1: Write the proportion equation
139,910,306.21 : 209,804,509.05 = 74,317,089.95 : x - Step 2: Convert to fraction form
139,910,306.21/209,804,509.05 = 74,317,089.95/x - Step 3: Cross multiply
139,910,306.21x = 209,804,509.05 × 74,317,089.95 - Step 4: Simplify right side
139,910,306.21x = 15,592,060,569,935,416 - Step 5: Solve for x
x = 15,592,060,569,935,416/139,910,306.21 - Step 6: Final answer
x = 111,443,259.56
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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.