Finding the Fourth Proportional to 163,334,612.55, 245,001,918.83 and 126,346,318.95
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Solution
The fourth proportional to 163,334,612.55, 245,001,918.83 and 126,346,318.95 is: 189,519,478.43
Step by Step Solution
- Step 1: Write the proportion equation
163,334,612.55 : 245,001,918.83 = 126,346,318.95 : x - Step 2: Convert to fraction form
163,334,612.55/245,001,918.83 = 126,346,318.95/x - Step 3: Cross multiply
163,334,612.55x = 245,001,918.83 × 126,346,318.95 - Step 4: Simplify right side
163,334,612.55x = 30,955,090,579,225,460 - Step 5: Solve for x
x = 30,955,090,579,225,460/163,334,612.55 - Step 6: Final answer
x = 189,519,478.43
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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.