Finding the Fourth Proportional to 524,918,702.10, 724,393,887.57 and 289,964,494.74
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Solution
The fourth proportional to 524,918,702.10, 724,393,887.57 and 289,964,494.74 is: 400,154,360.59
Step by Step Solution
- Step 1: Write the proportion equation
524,918,702.10 : 724,393,887.57 = 289,964,494.74 : x - Step 2: Convert to fraction form
524,918,702.10/724,393,887.57 = 289,964,494.74/x - Step 3: Cross multiply
524,918,702.10x = 724,393,887.57 × 289,964,494.74 - Step 4: Simplify right side
524,918,702.10x = 210,048,507,601,979,424 - Step 5: Solve for x
x = 210,048,507,601,979,424/524,918,702.10 - Step 6: Final answer
x = 400,154,360.59
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.