Finding the Fourth Proportional to 745,833,562.08, 1,028,923,798.32 and 711,254,467.68
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Solution
The fourth proportional to 745,833,562.08, 1,028,923,798.32 and 711,254,467.68 is: 981,219,786.38
Step by Step Solution
- Step 1: Write the proportion equation
745,833,562.08 : 1,028,923,798.32 = 711,254,467.68 : x - Step 2: Convert to fraction form
745,833,562.08/1,028,923,798.32 = 711,254,467.68/x - Step 3: Cross multiply
745,833,562.08x = 1,028,923,798.32 × 711,254,467.68 - Step 4: Simplify right side
745,833,562.08x = 731,826,648,457,375,232 - Step 5: Solve for x
x = 731,826,648,457,375,232/745,833,562.08 - Step 6: Final answer
x = 981,219,786.38
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Double scale
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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.