Finding the Fourth Proportional to 879,063,938.90, 1,318,595,908.35 and 265,742,825.30
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Solution
The fourth proportional to 879,063,938.90, 1,318,595,908.35 and 265,742,825.30 is: 398,614,237.95
Step by Step Solution
- Step 1: Write the proportion equation
879,063,938.90 : 1,318,595,908.35 = 265,742,825.30 : x - Step 2: Convert to fraction form
879,063,938.90/1,318,595,908.35 = 265,742,825.30/x - Step 3: Cross multiply
879,063,938.90x = 1,318,595,908.35 × 265,742,825.30 - Step 4: Simplify right side
879,063,938.90x = 350,407,402,113,948,864 - Step 5: Solve for x
x = 350,407,402,113,948,864/879,063,938.90 - Step 6: Final answer
x = 398,614,237.95
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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.