Finding the Fourth Proportional to 1,539,657,416.70, 2,309,486,125.05 and 925,925,730.30
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Solution
The fourth proportional to 1,539,657,416.70, 2,309,486,125.05 and 925,925,730.30 is: 1,388,888,595.45
Step by Step Solution
- Step 1: Write the proportion equation
1,539,657,416.70 : 2,309,486,125.05 = 925,925,730.30 : x - Step 2: Convert to fraction form
1,539,657,416.70/2,309,486,125.05 = 925,925,730.30/x - Step 3: Cross multiply
1,539,657,416.70x = 2,309,486,125.05 × 925,925,730.30 - Step 4: Simplify right side
1,539,657,416.70x = 2,138,412,626,954,638,336 - Step 5: Solve for x
x = 2,138,412,626,954,638,336/1,539,657,416.70 - Step 6: Final answer
x = 1,388,888,595.45
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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.