Finding the Fourth Proportional to 331,730,292.20, 497,595,438.30 and 147,497,412.20
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Solution
The fourth proportional to 331,730,292.20, 497,595,438.30 and 147,497,412.20 is: 221,246,118.30
Step by Step Solution
- Step 1: Write the proportion equation
331,730,292.20 : 497,595,438.30 = 147,497,412.20 : x - Step 2: Convert to fraction form
331,730,292.20/497,595,438.30 = 147,497,412.20/x - Step 3: Cross multiply
331,730,292.20x = 497,595,438.30 × 147,497,412.20 - Step 4: Simplify right side
331,730,292.20x = 73,394,039,471,774,768 - Step 5: Solve for x
x = 73,394,039,471,774,768/331,730,292.20 - Step 6: Final answer
x = 221,246,118.30
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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.