Finding the Fourth Proportional to 624,539,142.96, 861,869,152.08 and 346,085,316.72
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Solution
The fourth proportional to 624,539,142.96, 861,869,152.08 and 346,085,316.72 is: 477,600,582.50
Step by Step Solution
- Step 1: Write the proportion equation
624,539,142.96 : 861,869,152.08 = 346,085,316.72 : x - Step 2: Convert to fraction form
624,539,142.96/861,869,152.08 = 346,085,316.72/x - Step 3: Cross multiply
624,539,142.96x = 861,869,152.08 × 346,085,316.72 - Step 4: Simplify right side
624,539,142.96x = 298,280,258,468,804,672 - Step 5: Solve for x
x = 298,280,258,468,804,672/624,539,142.96 - Step 6: Final answer
x = 477,600,582.50
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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.