Finding the Fourth Proportional to 74,746,041.45, 112,119,062.18 and 74,242,156.65
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Solution
The fourth proportional to 74,746,041.45, 112,119,062.18 and 74,242,156.65 is: 111,363,234.98
Step by Step Solution
- Step 1: Write the proportion equation
74,746,041.45 : 112,119,062.18 = 74,242,156.65 : x - Step 2: Convert to fraction form
74,746,041.45/112,119,062.18 = 74,242,156.65/x - Step 3: Cross multiply
74,746,041.45x = 112,119,062.18 × 74,242,156.65 - Step 4: Simplify right side
74,746,041.45x = 8,323,960,977,447,440 - Step 5: Solve for x
x = 8,323,960,977,447,440/74,746,041.45 - Step 6: Final answer
x = 111,363,234.98
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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.