Finding the Fourth Proportional to 421,539,966.64, 581,786,032.41 and 242,889,652.23
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Solution
The fourth proportional to 421,539,966.64, 581,786,032.41 and 242,889,652.23 is: 335,222,798.00
Step by Step Solution
- Step 1: Write the proportion equation
421,539,966.64 : 581,786,032.41 = 242,889,652.23 : x - Step 2: Convert to fraction form
421,539,966.64/581,786,032.41 = 242,889,652.23/x - Step 3: Cross multiply
421,539,966.64x = 581,786,032.41 × 242,889,652.23 - Step 4: Simplify right side
421,539,966.64x = 141,309,807,084,336,400 - Step 5: Solve for x
x = 141,309,807,084,336,400/421,539,966.64 - Step 6: Final answer
x = 335,222,798.00
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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.