Finding the Fourth Proportional to 1,127,723,860.71, 1,556,132,705.12 and 625,953,796.08
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Solution
The fourth proportional to 1,127,723,860.71, 1,556,132,705.12 and 625,953,796.08 is: 863,746,177.51
Step by Step Solution
- Step 1: Write the proportion equation
1,127,723,860.71 : 1,556,132,705.12 = 625,953,796.08 : x - Step 2: Convert to fraction form
1,127,723,860.71/1,556,132,705.12 = 625,953,796.08/x - Step 3: Cross multiply
1,127,723,860.71x = 1,556,132,705.12 × 625,953,796.08 - Step 4: Simplify right side
1,127,723,860.71x = 974,067,173,974,103,296 - Step 5: Solve for x
x = 974,067,173,974,103,296/1,127,723,860.71 - Step 6: Final answer
x = 863,746,177.51
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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.