Finding the Fourth Proportional to 88,069,308.79, 121,535,930.12 and 48,911,085.53
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Solution
The fourth proportional to 88,069,308.79, 121,535,930.12 and 48,911,085.53 is: 67,497,455.75
Step by Step Solution
- Step 1: Write the proportion equation
88,069,308.79 : 121,535,930.12 = 48,911,085.53 : x - Step 2: Convert to fraction form
88,069,308.79/121,535,930.12 = 48,911,085.53/x - Step 3: Cross multiply
88,069,308.79x = 121,535,930.12 × 48,911,085.53 - Step 4: Simplify right side
88,069,308.79x = 5,944,454,273,126,707 - Step 5: Solve for x
x = 5,944,454,273,126,707/88,069,308.79 - Step 6: Final answer
x = 67,497,455.75
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.