Finding the Fourth Proportional to 319,643,254.20, 479,464,881.30 and 147,456,370.20
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Solution
The fourth proportional to 319,643,254.20, 479,464,881.30 and 147,456,370.20 is: 221,184,555.30
Step by Step Solution
- Step 1: Write the proportion equation
319,643,254.20 : 479,464,881.30 = 147,456,370.20 : x - Step 2: Convert to fraction form
319,643,254.20/479,464,881.30 = 147,456,370.20/x - Step 3: Cross multiply
319,643,254.20x = 479,464,881.30 × 147,456,370.20 - Step 4: Simplify right side
319,643,254.20x = 70,700,151,034,871,856 - Step 5: Solve for x
x = 70,700,151,034,871,856/319,643,254.20 - Step 6: Final answer
x = 221,184,555.30
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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.