Finding the Fourth Proportional to 86,911,289.90, 130,366,934.85 and 29,405,437.10
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Solution
The fourth proportional to 86,911,289.90, 130,366,934.85 and 29,405,437.10 is: 44,108,155.65
Step by Step Solution
- Step 1: Write the proportion equation
86,911,289.90 : 130,366,934.85 = 29,405,437.10 : x - Step 2: Convert to fraction form
86,911,289.90/130,366,934.85 = 29,405,437.10/x - Step 3: Cross multiply
86,911,289.90x = 130,366,934.85 × 29,405,437.10 - Step 4: Simplify right side
86,911,289.90x = 3,833,496,702,651,473 - Step 5: Solve for x
x = 3,833,496,702,651,473/86,911,289.90 - Step 6: Final answer
x = 44,108,155.65
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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.