Finding the Fourth Proportional to 185,446,862.80, 278,353,370.04 and 139,227,977.68
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Solution
The fourth proportional to 185,446,862.80, 278,353,370.04 and 139,227,977.68 is: 208,979,414.40
Step by Step Solution
- Step 1: Write the proportion equation
185,446,862.80 : 278,353,370.04 = 139,227,977.68 : x - Step 2: Convert to fraction form
185,446,862.80/278,353,370.04 = 139,227,977.68/x - Step 3: Cross multiply
185,446,862.80x = 278,353,370.04 × 139,227,977.68 - Step 4: Simplify right side
185,446,862.80x = 38,754,576,791,081,904 - Step 5: Solve for x
x = 38,754,576,791,081,904/185,446,862.80 - Step 6: Final answer
x = 208,979,414.40
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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.