Finding the Fourth Proportional to 7,648,692,101.20, 11,473,038,151.80 and 4,541,675,438.80
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Solution
The fourth proportional to 7,648,692,101.20, 11,473,038,151.80 and 4,541,675,438.80 is: 6,812,513,158.20
Step by Step Solution
- Step 1: Write the proportion equation
7,648,692,101.20 : 11,473,038,151.80 = 4,541,675,438.80 : x - Step 2: Convert to fraction form
7,648,692,101.20/11,473,038,151.80 = 4,541,675,438.80/x - Step 3: Cross multiply
7,648,692,101.20x = 11,473,038,151.80 × 4,541,675,438.80 - Step 4: Simplify right side
7,648,692,101.20x = 52,106,815,582,445,404,160 - Step 5: Solve for x
x = 52,106,815,582,445,404,160/7,648,692,101.20 - Step 6: Final answer
x = 6,812,513,158.20
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Double scale
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Similar ratio
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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.