Finding the Fourth Proportional to 713,149,215.20, 1,069,723,822.80 and 649,659,730.40
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Solution
The fourth proportional to 713,149,215.20, 1,069,723,822.80 and 649,659,730.40 is: 974,489,595.60
Step by Step Solution
- Step 1: Write the proportion equation
713,149,215.20 : 1,069,723,822.80 = 649,659,730.40 : x - Step 2: Convert to fraction form
713,149,215.20/1,069,723,822.80 = 649,659,730.40/x - Step 3: Cross multiply
713,149,215.20x = 1,069,723,822.80 × 649,659,730.40 - Step 4: Simplify right side
713,149,215.20x = 694,956,490,322,705,280 - Step 5: Solve for x
x = 694,956,490,322,705,280/713,149,215.20 - Step 6: Final answer
x = 974,489,595.60
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1.5x scale
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.