Finding the Fourth Proportional to 38,249,868.60, 57,386,059.68 and 12,341,683.90
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Solution
The fourth proportional to 38,249,868.60, 57,386,059.68 and 12,341,683.90 is: 18,516,157.96
Step by Step Solution
- Step 1: Write the proportion equation
38,249,868.60 : 57,386,059.68 = 12,341,683.90 : x - Step 2: Convert to fraction form
38,249,868.60/57,386,059.68 = 12,341,683.90/x - Step 3: Cross multiply
38,249,868.60x = 57,386,059.68 × 12,341,683.90 - Step 4: Simplify right side
38,249,868.60x = 708,240,608,955,109 - Step 5: Solve for x
x = 708,240,608,955,109/38,249,868.60 - Step 6: Final answer
x = 18,516,157.96
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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.