Finding the Fourth Proportional to 28,429,430.61, 42,648,861.64 and 9,980,592.99
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Solution
The fourth proportional to 28,429,430.61, 42,648,861.64 and 9,980,592.99 is: 14,972,545.01
Step by Step Solution
- Step 1: Write the proportion equation
28,429,430.61 : 42,648,861.64 = 9,980,592.99 : x - Step 2: Convert to fraction form
28,429,430.61/42,648,861.64 = 9,980,592.99/x - Step 3: Cross multiply
28,429,430.61x = 42,648,861.64 × 9,980,592.99 - Step 4: Simplify right side
28,429,430.61x = 425,660,929,515,663.94 - Step 5: Solve for x
x = 425,660,929,515,663.94/28,429,430.61 - Step 6: Final answer
x = 14,972,545.01
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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.