Finding the Fourth Proportional to 87,708,109.12, 121,035,724.64 and 48,549,045.76
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Solution
The fourth proportional to 87,708,109.12, 121,035,724.64 and 48,549,045.76 is: 66,996,871.70
Step by Step Solution
- Step 1: Write the proportion equation
87,708,109.12 : 121,035,724.64 = 48,549,045.76 : x - Step 2: Convert to fraction form
87,708,109.12/121,035,724.64 = 48,549,045.76/x - Step 3: Cross multiply
87,708,109.12x = 121,035,724.64 × 48,549,045.76 - Step 4: Simplify right side
87,708,109.12x = 5,876,168,934,142,119 - Step 5: Solve for x
x = 5,876,168,934,142,119/87,708,109.12 - Step 6: Final answer
x = 66,996,871.70
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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.