Finding the Fourth Proportional to 31,699,950.96, 47,516,742.45 and 13,266,457.95
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Solution
The fourth proportional to 31,699,950.96, 47,516,742.45 and 13,266,457.95 is: 19,885,799.40
Step by Step Solution
- Step 1: Write the proportion equation
31,699,950.96 : 47,516,742.45 = 13,266,457.95 : x - Step 2: Convert to fraction form
31,699,950.96/47,516,742.45 = 13,266,457.95/x - Step 3: Cross multiply
31,699,950.96x = 47,516,742.45 × 13,266,457.95 - Step 4: Simplify right side
31,699,950.96x = 630,378,865,633,905 - Step 5: Solve for x
x = 630,378,865,633,905/31,699,950.96 - Step 6: Final answer
x = 19,885,799.40
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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.