Finding the Fourth Proportional to 19,430,187.30, 29,145,280.95 and 13,756,817.70
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Solution
The fourth proportional to 19,430,187.30, 29,145,280.95 and 13,756,817.70 is: 20,635,226.55
Step by Step Solution
- Step 1: Write the proportion equation
19,430,187.30 : 29,145,280.95 = 13,756,817.70 : x - Step 2: Convert to fraction form
19,430,187.30/29,145,280.95 = 13,756,817.70/x - Step 3: Cross multiply
19,430,187.30x = 29,145,280.95 × 13,756,817.70 - Step 4: Simplify right side
19,430,187.30x = 400,946,316,844,432.81 - Step 5: Solve for x
x = 400,946,316,844,432.81/19,430,187.30 - Step 6: Final answer
x = 20,635,226.55
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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.