Finding the Fourth Proportional to 402,118,292.28, 554,968,177.43 and 243,435,846.93
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Solution
The fourth proportional to 402,118,292.28, 554,968,177.43 and 243,435,846.93 is: 335,968,671.12
Step by Step Solution
- Step 1: Write the proportion equation
402,118,292.28 : 554,968,177.43 = 243,435,846.93 : x - Step 2: Convert to fraction form
402,118,292.28/554,968,177.43 = 243,435,846.93/x - Step 3: Cross multiply
402,118,292.28x = 554,968,177.43 × 243,435,846.93 - Step 4: Simplify right side
402,118,292.28x = 135,099,148,290,653,376 - Step 5: Solve for x
x = 135,099,148,290,653,376/402,118,292.28 - Step 6: Final answer
x = 335,968,671.12
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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.