Finding the Fourth Proportional to 328,720,643.84, 453,641,831.62 and 187,589,054.42
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Solution
The fourth proportional to 328,720,643.84, 453,641,831.62 and 187,589,054.42 is: 258,877,085.55
Step by Step Solution
- Step 1: Write the proportion equation
328,720,643.84 : 453,641,831.62 = 187,589,054.42 : x - Step 2: Convert to fraction form
328,720,643.84/453,641,831.62 = 187,589,054.42/x - Step 3: Cross multiply
328,720,643.84x = 453,641,831.62 × 187,589,054.42 - Step 4: Simplify right side
328,720,643.84x = 85,098,242,238,952,656 - Step 5: Solve for x
x = 85,098,242,238,952,656/328,720,643.84 - Step 6: Final answer
x = 258,877,085.55
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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.