Finding the Fourth Proportional to 623,037,455.14, 860,056,425.42 and 388,204,139.96
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Solution
The fourth proportional to 623,037,455.14, 860,056,425.42 and 388,204,139.96 is: 535,886,666.51
Step by Step Solution
- Step 1: Write the proportion equation
623,037,455.14 : 860,056,425.42 = 388,204,139.96 : x - Step 2: Convert to fraction form
623,037,455.14/860,056,425.42 = 388,204,139.96/x - Step 3: Cross multiply
623,037,455.14x = 860,056,425.42 × 388,204,139.96 - Step 4: Simplify right side
623,037,455.14x = 333,877,464,947,242,944 - Step 5: Solve for x
x = 333,877,464,947,242,944/623,037,455.14 - Step 6: Final answer
x = 535,886,666.51
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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.