Finding the Fourth Proportional to 1,402,429,918.08, 1,935,973,186.56 and 838,113,934.08
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Solution
The fourth proportional to 1,402,429,918.08, 1,935,973,186.56 and 838,113,934.08 is: 1,156,967,690.68
Step by Step Solution
- Step 1: Write the proportion equation
1,402,429,918.08 : 1,935,973,186.56 = 838,113,934.08 : x - Step 2: Convert to fraction form
1,402,429,918.08/1,935,973,186.56 = 838,113,934.08/x - Step 3: Cross multiply
1,402,429,918.08x = 1,935,973,186.56 × 838,113,934.08 - Step 4: Simplify right side
1,402,429,918.08x = 1,622,566,103,661,195,520 - Step 5: Solve for x
x = 1,622,566,103,661,195,520/1,402,429,918.08 - Step 6: Final answer
x = 1,156,967,690.68
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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.