Finding the Fourth Proportional to 170,357,908.60, 255,536,862.90 and 121,984,967.80
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Solution
The fourth proportional to 170,357,908.60, 255,536,862.90 and 121,984,967.80 is: 182,977,451.70
Step by Step Solution
- Step 1: Write the proportion equation
170,357,908.60 : 255,536,862.90 = 121,984,967.80 : x - Step 2: Convert to fraction form
170,357,908.60/255,536,862.90 = 121,984,967.80/x - Step 3: Cross multiply
170,357,908.60x = 255,536,862.90 × 121,984,967.80 - Step 4: Simplify right side
170,357,908.60x = 31,171,655,992,569,516 - Step 5: Solve for x
x = 31,171,655,992,569,516/170,357,908.60 - Step 6: Final answer
x = 182,977,451.70
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1.5x scale
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.