Finding the Fourth Proportional to 421,894,913.41, 582,159,767.71 and 243,285,398.60
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Solution
The fourth proportional to 421,894,913.41, 582,159,767.71 and 243,285,398.60 is: 335,702,011.65
Step by Step Solution
- Step 1: Write the proportion equation
421,894,913.41 : 582,159,767.71 = 243,285,398.60 : x - Step 2: Convert to fraction form
421,894,913.41/582,159,767.71 = 243,285,398.60/x - Step 3: Cross multiply
421,894,913.41x = 582,159,767.71 × 243,285,398.60 - Step 4: Simplify right side
421,894,913.41x = 141,630,971,136,210,768 - Step 5: Solve for x
x = 141,630,971,136,210,768/421,894,913.41 - Step 6: Final answer
x = 335,702,011.65
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.