Finding the Fourth Proportional to 68,688,035.70, 103,032,053.55 and 48,532,643.70
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Solution
The fourth proportional to 68,688,035.70, 103,032,053.55 and 48,532,643.70 is: 72,798,965.55
Step by Step Solution
- Step 1: Write the proportion equation
68,688,035.70 : 103,032,053.55 = 48,532,643.70 : x - Step 2: Convert to fraction form
68,688,035.70/103,032,053.55 = 48,532,643.70/x - Step 3: Cross multiply
68,688,035.70x = 103,032,053.55 × 48,532,643.70 - Step 4: Simplify right side
68,688,035.70x = 5,000,417,944,621,470 - Step 5: Solve for x
x = 5,000,417,944,621,470/68,688,035.70 - Step 6: Final answer
x = 72,798,965.55
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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.