Finding the Fourth Proportional to 1,539,778,830.60, 2,309,668,245.90 and 927,558,798.60
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Solution
The fourth proportional to 1,539,778,830.60, 2,309,668,245.90 and 927,558,798.60 is: 1,391,338,197.90
Step by Step Solution
- Step 1: Write the proportion equation
1,539,778,830.60 : 2,309,668,245.90 = 927,558,798.60 : x - Step 2: Convert to fraction form
1,539,778,830.60/2,309,668,245.90 = 927,558,798.60/x - Step 3: Cross multiply
1,539,778,830.60x = 2,309,668,245.90 × 927,558,798.60 - Step 4: Simplify right side
1,539,778,830.60x = 2,142,353,103,331,573,504 - Step 5: Solve for x
x = 2,142,353,103,331,573,504/1,539,778,830.60 - Step 6: Final answer
x = 1,391,338,197.90
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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.