Finding the Fourth Proportional to 74,661,162.48, 102,973,995.36 and 48,564,013.86
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Solution
The fourth proportional to 74,661,162.48, 102,973,995.36 and 48,564,013.86 is: 66,980,346.57
Step by Step Solution
- Step 1: Write the proportion equation
74,661,162.48 : 102,973,995.36 = 48,564,013.86 : x - Step 2: Convert to fraction form
74,661,162.48/102,973,995.36 = 48,564,013.86/x - Step 3: Cross multiply
74,661,162.48x = 102,973,995.36 × 48,564,013.86 - Step 4: Simplify right side
74,661,162.48x = 5,000,830,537,882,616 - Step 5: Solve for x
x = 5,000,830,537,882,616/74,661,162.48 - Step 6: Final answer
x = 66,980,346.57
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.