Finding the Fourth Proportional to 415,358,962.32, 573,371,859.15 and 258,803,419.98
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Solution
The fourth proportional to 415,358,962.32, 573,371,859.15 and 258,803,419.98 is: 357,258,688.34
Step by Step Solution
- Step 1: Write the proportion equation
415,358,962.32 : 573,371,859.15 = 258,803,419.98 : x - Step 2: Convert to fraction form
415,358,962.32/573,371,859.15 = 258,803,419.98/x - Step 3: Cross multiply
415,358,962.32x = 573,371,859.15 × 258,803,419.98 - Step 4: Simplify right side
415,358,962.32x = 148,390,598,068,310,848 - Step 5: Solve for x
x = 148,390,598,068,310,848/415,358,962.32 - Step 6: Final answer
x = 357,258,688.34
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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.