Finding the Fourth Proportional to 498,340,226.28, 687,688,696.26 and 286,630,956.84
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Solution
The fourth proportional to 498,340,226.28, 687,688,696.26 and 286,630,956.84 is: 395,538,747.67
Step by Step Solution
- Step 1: Write the proportion equation
498,340,226.28 : 687,688,696.26 = 286,630,956.84 : x - Step 2: Convert to fraction form
498,340,226.28/687,688,696.26 = 286,630,956.84/x - Step 3: Cross multiply
498,340,226.28x = 687,688,696.26 × 286,630,956.84 - Step 4: Simplify right side
498,340,226.28x = 197,112,869,017,055,904 - Step 5: Solve for x
x = 197,112,869,017,055,904/498,340,226.28 - Step 6: Final answer
x = 395,538,747.67
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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.