Finding the Fourth Proportional to 917,567,999.10, 1,376,351,998.65 and 817,238,936.70
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Solution
The fourth proportional to 917,567,999.10, 1,376,351,998.65 and 817,238,936.70 is: 1,225,858,405.05
Step by Step Solution
- Step 1: Write the proportion equation
917,567,999.10 : 1,376,351,998.65 = 817,238,936.70 : x - Step 2: Convert to fraction form
917,567,999.10/1,376,351,998.65 = 817,238,936.70/x - Step 3: Cross multiply
917,567,999.10x = 1,376,351,998.65 × 817,238,936.70 - Step 4: Simplify right side
917,567,999.10x = 1,124,808,443,901,645,952 - Step 5: Solve for x
x = 1,124,808,443,901,645,952/917,567,999.10 - Step 6: Final answer
x = 1,225,858,405.05
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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.