Finding the Fourth Proportional to 1,425,508,795.07, 1,967,206,374.47 and 790,474,024.23
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Solution
The fourth proportional to 1,425,508,795.07, 1,967,206,374.47 and 790,474,024.23 is: 1,090,856,503.09
Step by Step Solution
- Step 1: Write the proportion equation
1,425,508,795.07 : 1,967,206,374.47 = 790,474,024.23 : x - Step 2: Convert to fraction form
1,425,508,795.07/1,967,206,374.47 = 790,474,024.23/x - Step 3: Cross multiply
1,425,508,795.07x = 1,967,206,374.47 × 790,474,024.23 - Step 4: Simplify right side
1,425,508,795.07x = 1,555,025,539,308,381,952 - Step 5: Solve for x
x = 1,555,025,539,308,381,952/1,425,508,795.07 - Step 6: Final answer
x = 1,090,856,503.09
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1.5x scale
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.