Finding the Fourth Proportional to 1,435,444,460.80, 2,153,166,691.20 and 515,201,225.20
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Solution
The fourth proportional to 1,435,444,460.80, 2,153,166,691.20 and 515,201,225.20 is: 772,801,837.80
Step by Step Solution
- Step 1: Write the proportion equation
1,435,444,460.80 : 2,153,166,691.20 = 515,201,225.20 : x - Step 2: Convert to fraction form
1,435,444,460.80/2,153,166,691.20 = 515,201,225.20/x - Step 3: Cross multiply
1,435,444,460.80x = 2,153,166,691.20 × 515,201,225.20 - Step 4: Simplify right side
1,435,444,460.80x = 1,109,314,117,366,069,888 - Step 5: Solve for x
x = 1,109,314,117,366,069,888/1,435,444,460.80 - Step 6: Final answer
x = 772,801,837.80
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1.5x scale
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.