Finding the Fourth Proportional to 151,191,553.34, 208,654,829.99 and 91,655,358.78
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Solution
The fourth proportional to 151,191,553.34, 208,654,829.99 and 91,655,358.78 is: 126,490,752.17
Step by Step Solution
- Step 1: Write the proportion equation
151,191,553.34 : 208,654,829.99 = 91,655,358.78 : x - Step 2: Convert to fraction form
151,191,553.34/208,654,829.99 = 91,655,358.78/x - Step 3: Cross multiply
151,191,553.34x = 208,654,829.99 × 91,655,358.78 - Step 4: Simplify right side
151,191,553.34x = 19,124,333,303,455,080 - Step 5: Solve for x
x = 19,124,333,303,455,080/151,191,553.34 - Step 6: Final answer
x = 126,490,752.17
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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.