Finding the Fourth Proportional to 407,402,939.84, 562,229,637.12 and 228,818,299.28
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Solution
The fourth proportional to 407,402,939.84, 562,229,637.12 and 228,818,299.28 is: 315,776,880.31
Step by Step Solution
- Step 1: Write the proportion equation
407,402,939.84 : 562,229,637.12 = 228,818,299.28 : x - Step 2: Convert to fraction form
407,402,939.84/562,229,637.12 = 228,818,299.28/x - Step 3: Cross multiply
407,402,939.84x = 562,229,637.12 × 228,818,299.28 - Step 4: Simplify right side
407,402,939.84x = 128,648,429,370,609,952 - Step 5: Solve for x
x = 128,648,429,370,609,952/407,402,939.84 - Step 6: Final answer
x = 315,776,880.31
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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.