Finding the Fourth Proportional to 84,249,750.60, 126,374,625.90 and 74,683,812.60
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Solution
The fourth proportional to 84,249,750.60, 126,374,625.90 and 74,683,812.60 is: 112,025,718.90
Step by Step Solution
- Step 1: Write the proportion equation
84,249,750.60 : 126,374,625.90 = 74,683,812.60 : x - Step 2: Convert to fraction form
84,249,750.60/126,374,625.90 = 74,683,812.60/x - Step 3: Cross multiply
84,249,750.60x = 126,374,625.90 × 74,683,812.60 - Step 4: Simplify right side
84,249,750.60x = 9,438,138,878,110,706 - Step 5: Solve for x
x = 9,438,138,878,110,706/84,249,750.60 - Step 6: Final answer
x = 112,025,718.90
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1.5x scale
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.