Finding the Fourth Proportional to 473,210,897.80, 709,816,346.70 and 392,589,329.80
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Solution
The fourth proportional to 473,210,897.80, 709,816,346.70 and 392,589,329.80 is: 588,883,994.70
Step by Step Solution
- Step 1: Write the proportion equation
473,210,897.80 : 709,816,346.70 = 392,589,329.80 : x - Step 2: Convert to fraction form
473,210,897.80/709,816,346.70 = 392,589,329.80/x - Step 3: Cross multiply
473,210,897.80x = 709,816,346.70 × 392,589,329.80 - Step 4: Simplify right side
473,210,897.80x = 278,666,323,832,037,472 - Step 5: Solve for x
x = 278,666,323,832,037,472/473,210,897.80 - Step 6: Final answer
x = 588,883,994.70
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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.