Finding the Fourth Proportional to 138,735,167.36, 191,430,197.53 and 79,169,267.18
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Solution
The fourth proportional to 138,735,167.36, 191,430,197.53 and 79,169,267.18 is: 109,239,702.83
Step by Step Solution
- Step 1: Write the proportion equation
138,735,167.36 : 191,430,197.53 = 79,169,267.18 : x - Step 2: Convert to fraction form
138,735,167.36/191,430,197.53 = 79,169,267.18/x - Step 3: Cross multiply
138,735,167.36x = 191,430,197.53 × 79,169,267.18 - Step 4: Simplify right side
138,735,167.36x = 15,155,388,453,615,594 - Step 5: Solve for x
x = 15,155,388,453,615,594/138,735,167.36 - Step 6: Final answer
x = 109,239,702.83
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.