Finding the Fourth Proportional to 490,680,735.80, 735,395,913.30 and 260,759,967.80
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Solution
The fourth proportional to 490,680,735.80, 735,395,913.30 and 260,759,967.80 is: 390,807,709.95
Step by Step Solution
- Step 1: Write the proportion equation
490,680,735.80 : 735,395,913.30 = 260,759,967.80 : x - Step 2: Convert to fraction form
490,680,735.80/735,395,913.30 = 260,759,967.80/x - Step 3: Cross multiply
490,680,735.80x = 735,395,913.30 × 260,759,967.80 - Step 4: Simplify right side
490,680,735.80x = 191,761,814,672,359,584 - Step 5: Solve for x
x = 191,761,814,672,359,584/490,680,735.80 - Step 6: Final answer
x = 390,807,709.95
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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.