Finding the Fourth Proportional to 671,330,220.30, 1,006,995,330.45 and 489,931,692.30
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Solution
The fourth proportional to 671,330,220.30, 1,006,995,330.45 and 489,931,692.30 is: 734,897,538.45
Step by Step Solution
- Step 1: Write the proportion equation
671,330,220.30 : 1,006,995,330.45 = 489,931,692.30 : x - Step 2: Convert to fraction form
671,330,220.30/1,006,995,330.45 = 489,931,692.30/x - Step 3: Cross multiply
671,330,220.30x = 1,006,995,330.45 × 489,931,692.30 - Step 4: Simplify right side
671,330,220.30x = 493,358,926,385,566,272 - Step 5: Solve for x
x = 493,358,926,385,566,272/671,330,220.30 - Step 6: Final answer
x = 734,897,538.45
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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.