Finding the Fourth Proportional to 421,777,802.08, 632,708,284.34 and 145,392,630.13
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Solution
The fourth proportional to 421,777,802.08, 632,708,284.34 and 145,392,630.13 is: 218,103,278.82
Step by Step Solution
- Step 1: Write the proportion equation
421,777,802.08 : 632,708,284.34 = 145,392,630.13 : x - Step 2: Convert to fraction form
421,777,802.08/632,708,284.34 = 145,392,630.13/x - Step 3: Cross multiply
421,777,802.08x = 632,708,284.34 × 145,392,630.13 - Step 4: Simplify right side
421,777,802.08x = 91,991,121,565,232,496 - Step 5: Solve for x
x = 91,991,121,565,232,496/421,777,802.08 - Step 6: Final answer
x = 218,103,278.82
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.