Finding the Fourth Proportional to 74,506,988.70, 111,888,009.45 and 40,494,764.70
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Solution
The fourth proportional to 74,506,988.70, 111,888,009.45 and 40,494,764.70 is: 60,811,458.02
Step by Step Solution
- Step 1: Write the proportion equation
74,506,988.70 : 111,888,009.45 = 40,494,764.70 : x - Step 2: Convert to fraction form
74,506,988.70/111,888,009.45 = 40,494,764.70/x - Step 3: Cross multiply
74,506,988.70x = 111,888,009.45 × 40,494,764.70 - Step 4: Simplify right side
74,506,988.70x = 4,530,878,615,429,127 - Step 5: Solve for x
x = 4,530,878,615,429,127/74,506,988.70 - Step 6: Final answer
x = 60,811,458.02
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.