Finding the Fourth Proportional to 148,487,977.68, 204,938,053.84 and 86,608,316.24
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Solution
The fourth proportional to 148,487,977.68, 204,938,053.84 and 86,608,316.24 is: 119,533,850.85
Step by Step Solution
- Step 1: Write the proportion equation
148,487,977.68 : 204,938,053.84 = 86,608,316.24 : x - Step 2: Convert to fraction form
148,487,977.68/204,938,053.84 = 86,608,316.24/x - Step 3: Cross multiply
148,487,977.68x = 204,938,053.84 × 86,608,316.24 - Step 4: Simplify right side
148,487,977.68x = 17,749,339,776,584,866 - Step 5: Solve for x
x = 17,749,339,776,584,866/148,487,977.68 - Step 6: Final answer
x = 119,533,850.85
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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.