Finding the Fourth Proportional to 1,235,402,780.04, 1,853,102,605.14 and 315,279,139.32
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Solution
The fourth proportional to 1,235,402,780.04, 1,853,102,605.14 and 315,279,139.32 is: 472,918,309.61
Step by Step Solution
- Step 1: Write the proportion equation
1,235,402,780.04 : 1,853,102,605.14 = 315,279,139.32 : x - Step 2: Convert to fraction form
1,235,402,780.04/1,853,102,605.14 = 315,279,139.32/x - Step 3: Cross multiply
1,235,402,780.04x = 1,853,102,605.14 × 315,279,139.32 - Step 4: Simplify right side
1,235,402,780.04x = 584,244,594,420,189,056 - Step 5: Solve for x
x = 584,244,594,420,189,056/1,235,402,780.04 - Step 6: Final answer
x = 472,918,309.61
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.