Finding the Fourth Proportional to 66,430,272.30, 99,645,408.45 and 62,391,320.70
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Solution
The fourth proportional to 66,430,272.30, 99,645,408.45 and 62,391,320.70 is: 93,586,981.05
Step by Step Solution
- Step 1: Write the proportion equation
66,430,272.30 : 99,645,408.45 = 62,391,320.70 : x - Step 2: Convert to fraction form
66,430,272.30/99,645,408.45 = 62,391,320.70/x - Step 3: Cross multiply
66,430,272.30x = 99,645,408.45 × 62,391,320.70 - Step 4: Simplify right side
66,430,272.30x = 6,217,008,634,886,440 - Step 5: Solve for x
x = 6,217,008,634,886,440/66,430,272.30 - Step 6: Final answer
x = 93,586,981.05
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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.