Finding the Fourth Proportional to 282,280,850.78, 423,374,312.35 and 85,497,477.93
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Solution
The fourth proportional to 282,280,850.78, 423,374,312.35 and 85,497,477.93 is: 128,231,992.45
Step by Step Solution
- Step 1: Write the proportion equation
282,280,850.78 : 423,374,312.35 = 85,497,477.93 : x - Step 2: Convert to fraction form
282,280,850.78/423,374,312.35 = 85,497,477.93/x - Step 3: Cross multiply
282,280,850.78x = 423,374,312.35 × 85,497,477.93 - Step 4: Simplify right side
282,280,850.78x = 36,197,435,925,428,784 - Step 5: Solve for x
x = 36,197,435,925,428,784/282,280,850.78 - Step 6: Final answer
x = 128,231,992.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.