Finding the Fourth Proportional to 70,982,471.93, 97,956,106.37 and 38,387,423.93
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Solution
The fourth proportional to 70,982,471.93, 97,956,106.37 and 38,387,423.93 is: 52,974,804.61
Step by Step Solution
- Step 1: Write the proportion equation
70,982,471.93 : 97,956,106.37 = 38,387,423.93 : x - Step 2: Convert to fraction form
70,982,471.93/97,956,106.37 = 38,387,423.93/x - Step 3: Cross multiply
70,982,471.93x = 97,956,106.37 × 38,387,423.93 - Step 4: Simplify right side
70,982,471.93x = 3,760,282,581,565,426 - Step 5: Solve for x
x = 3,760,282,581,565,426/70,982,471.93 - Step 6: Final answer
x = 52,974,804.61
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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.