Finding the Fourth Proportional to 398,309,179,250.22, 549,668,323,448.20 and 215,406,280,894.99
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Solution
The fourth proportional to 398,309,179,250.22, 549,668,323,448.20 and 215,406,280,894.99 is: 297,261,563,247.53
Step by Step Solution
- Step 1: Write the proportion equation
398,309,179,250.22 : 549,668,323,448.20 = 215,406,280,894.99 : x - Step 2: Convert to fraction form
398,309,179,250.22/549,668,323,448.20 = 215,406,280,894.99/x - Step 3: Cross multiply
398,309,179,250.22x = 549,668,323,448.20 × 215,406,280,894.99 - Step 4: Simplify right side
398,309,179,250.22x = 118,402,009,279,761,188,126,720 - Step 5: Solve for x
x = 118,402,009,279,761,188,126,720/398,309,179,250.22 - Step 6: Final answer
x = 297,261,563,247.53
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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.