Finding the Fourth Proportional to 1,010,938,230.95, 1,395,067,997.42 and 564,905,259.36
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Solution
The fourth proportional to 1,010,938,230.95, 1,395,067,997.42 and 564,905,259.36 is: 779,554,303.89
Step by Step Solution
- Step 1: Write the proportion equation
1,010,938,230.95 : 1,395,067,997.42 = 564,905,259.36 : x - Step 2: Convert to fraction form
1,010,938,230.95/1,395,067,997.42 = 564,905,259.36/x - Step 3: Cross multiply
1,010,938,230.95x = 1,395,067,997.42 × 564,905,259.36 - Step 4: Simplify right side
1,010,938,230.95x = 788,081,248,904,556,416 - Step 5: Solve for x
x = 788,081,248,904,556,416/1,010,938,230.95 - Step 6: Final answer
x = 779,554,303.89
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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.