Finding the Fourth Proportional to 1,213,127,665,391, 1,674,168,802,855.40 and 671,804,387,135.75
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Solution
The fourth proportional to 1,213,127,665,391, 1,674,168,802,855.40 and 671,804,387,135.75 is: 927,119,196,644.12
Step by Step Solution
- Step 1: Write the proportion equation
1,213,127,665,391 : 1,674,168,802,855.40 = 671,804,387,135.75 : x - Step 2: Convert to fraction form
1,213,127,665,391/1,674,168,802,855.40 = 671,804,387,135.75/x - Step 3: Cross multiply
1,213,127,665,391x = 1,674,168,802,855.40 × 671,804,387,135.75 - Step 4: Simplify right side
1,213,127,665,391x = 1,124,713,946,564,064,203,243,520 - Step 5: Solve for x
x = 1,124,713,946,564,064,203,243,520/1,213,127,665,391 - Step 6: Final answer
x = 927,119,196,644.12
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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.