Finding the Fourth Proportional to 623,571,208.70, 874,432,964.50 and 623,571,208.70
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Solution
The fourth proportional to 623,571,208.70, 874,432,964.50 and 623,571,208.70 is: 874,432,964.50
Step by Step Solution
- Step 1: Write the proportion equation
623,571,208.70 : 874,432,964.50 = 623,571,208.70 : x - Step 2: Convert to fraction form
623,571,208.70/874,432,964.50 = 623,571,208.70/x - Step 3: Cross multiply
623,571,208.70x = 874,432,964.50 × 623,571,208.70 - Step 4: Simplify right side
623,571,208.70x = 545,271,220,600,389,248 - Step 5: Solve for x
x = 545,271,220,600,389,248/623,571,208.70 - Step 6: Final answer
x = 874,432,964.50
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Double scale
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.