Finding the Fourth Proportional to 84,249,114.60, 126,373,671.90 and 74,683,176.60
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Solution
The fourth proportional to 84,249,114.60, 126,373,671.90 and 74,683,176.60 is: 112,024,764.90
Step by Step Solution
- Step 1: Write the proportion equation
84,249,114.60 : 126,373,671.90 = 74,683,176.60 : x - Step 2: Convert to fraction form
84,249,114.60/126,373,671.90 = 74,683,176.60/x - Step 3: Cross multiply
84,249,114.60x = 126,373,671.90 × 74,683,176.60 - Step 4: Simplify right side
84,249,114.60x = 9,437,987,256,098,158 - Step 5: Solve for x
x = 9,437,987,256,098,158/84,249,114.60 - Step 6: Final answer
x = 112,024,764.90
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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.