Finding the Fourth Proportional to 651,670,811.80, 977,506,217.70 and 220,849,307.80
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Solution
The fourth proportional to 651,670,811.80, 977,506,217.70 and 220,849,307.80 is: 331,273,961.70
Step by Step Solution
- Step 1: Write the proportion equation
651,670,811.80 : 977,506,217.70 = 220,849,307.80 : x - Step 2: Convert to fraction form
651,670,811.80/977,506,217.70 = 220,849,307.80/x - Step 3: Cross multiply
651,670,811.80x = 977,506,217.70 × 220,849,307.80 - Step 4: Simplify right side
651,670,811.80x = 215,881,571,549,241,120 - Step 5: Solve for x
x = 215,881,571,549,241,120/651,670,811.80 - Step 6: Final answer
x = 331,273,961.70
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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.