Finding the Fourth Proportional to 74,975,253.80, 112,462,880.70 and 44,742,165.80
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Solution
The fourth proportional to 74,975,253.80, 112,462,880.70 and 44,742,165.80 is: 67,113,248.70
Step by Step Solution
- Step 1: Write the proportion equation
74,975,253.80 : 112,462,880.70 = 44,742,165.80 : x - Step 2: Convert to fraction form
74,975,253.80/112,462,880.70 = 44,742,165.80/x - Step 3: Cross multiply
74,975,253.80x = 112,462,880.70 × 44,742,165.80 - Step 4: Simplify right side
74,975,253.80x = 5,031,832,854,625,020 - Step 5: Solve for x
x = 5,031,832,854,625,020/74,975,253.80 - Step 6: Final answer
x = 67,113,248.70
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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.