Finding the Fourth Proportional to 553,164,213.66, 763,357,394.35 and 302,263,093.57
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Solution
The fourth proportional to 553,164,213.66, 763,357,394.35 and 302,263,093.57 is: 417,118,030.81
Step by Step Solution
- Step 1: Write the proportion equation
553,164,213.66 : 763,357,394.35 = 302,263,093.57 : x - Step 2: Convert to fraction form
553,164,213.66/763,357,394.35 = 302,263,093.57/x - Step 3: Cross multiply
553,164,213.66x = 763,357,394.35 × 302,263,093.57 - Step 4: Simplify right side
553,164,213.66x = 230,734,767,515,765,440 - Step 5: Solve for x
x = 230,734,767,515,765,440/553,164,213.66 - Step 6: Final answer
x = 417,118,030.81
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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.