Finding the Fourth Proportional to 417,643,543.80, 626,465,315.70 and 175,778,839.80
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Solution
The fourth proportional to 417,643,543.80, 626,465,315.70 and 175,778,839.80 is: 263,668,259.70
Step by Step Solution
- Step 1: Write the proportion equation
417,643,543.80 : 626,465,315.70 = 175,778,839.80 : x - Step 2: Convert to fraction form
417,643,543.80/626,465,315.70 = 175,778,839.80/x - Step 3: Cross multiply
417,643,543.80x = 626,465,315.70 × 175,778,839.80 - Step 4: Simplify right side
417,643,543.80x = 110,119,346,368,686,736 - Step 5: Solve for x
x = 110,119,346,368,686,736/417,643,543.80 - Step 6: Final answer
x = 263,668,259.70
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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.