Finding the Fourth Proportional to 918,331,610,417.20, 1,377,497,415,625.80 and 893,536,699,121.20
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Solution
The fourth proportional to 918,331,610,417.20, 1,377,497,415,625.80 and 893,536,699,121.20 is: 1,340,305,048,681.80
Step by Step Solution
- Step 1: Write the proportion equation
918,331,610,417.20 : 1,377,497,415,625.80 = 893,536,699,121.20 : x - Step 2: Convert to fraction form
918,331,610,417.20/1,377,497,415,625.80 = 893,536,699,121.20/x - Step 3: Cross multiply
918,331,610,417.20x = 1,377,497,415,625.80 × 893,536,699,121.20 - Step 4: Simplify right side
918,331,610,417.20x = 1,230,844,493,806,261,113,978,880 - Step 5: Solve for x
x = 1,230,844,493,806,261,113,978,880/918,331,610,417.20 - Step 6: Final answer
x = 1,340,305,048,681.80
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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.