Finding the Fourth Proportional to 140,249,725.99, 193,540,909.21 and 78,370,573.03
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Solution
The fourth proportional to 140,249,725.99, 193,540,909.21 and 78,370,573.03 is: 108,149,316.17
Step by Step Solution
- Step 1: Write the proportion equation
140,249,725.99 : 193,540,909.21 = 78,370,573.03 : x - Step 2: Convert to fraction form
140,249,725.99/193,540,909.21 = 78,370,573.03/x - Step 3: Cross multiply
140,249,725.99x = 193,540,909.21 × 78,370,573.03 - Step 4: Simplify right side
140,249,725.99x = 15,167,911,959,534,906 - Step 5: Solve for x
x = 15,167,911,959,534,906/140,249,725.99 - Step 6: Final answer
x = 108,149,316.17
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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.