Finding the Fourth Proportional to 649,269,368.40, 974,512,913.40 and 342,781,438.80
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Solution
The fourth proportional to 649,269,368.40, 974,512,913.40 and 342,781,438.80 is: 514,493,605.96
Step by Step Solution
- Step 1: Write the proportion equation
649,269,368.40 : 974,512,913.40 = 342,781,438.80 : x - Step 2: Convert to fraction form
649,269,368.40/974,512,913.40 = 342,781,438.80/x - Step 3: Cross multiply
649,269,368.40x = 974,512,913.40 × 342,781,438.80 - Step 4: Simplify right side
649,269,368.40x = 334,044,938,584,431,808 - Step 5: Solve for x
x = 334,044,938,584,431,808/649,269,368.40 - Step 6: Final answer
x = 514,493,605.96
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1.5x scale
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.