Finding the Fourth Proportional to 564,984,459.30, 847,476,688.95 and 292,438,769.70
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Solution
The fourth proportional to 564,984,459.30, 847,476,688.95 and 292,438,769.70 is: 438,658,154.55
Step by Step Solution
- Step 1: Write the proportion equation
564,984,459.30 : 847,476,688.95 = 292,438,769.70 : x - Step 2: Convert to fraction form
564,984,459.30/847,476,688.95 = 292,438,769.70/x - Step 3: Cross multiply
564,984,459.30x = 847,476,688.95 × 292,438,769.70 - Step 4: Simplify right side
564,984,459.30x = 247,835,040,265,967,584 - Step 5: Solve for x
x = 247,835,040,265,967,584/564,984,459.30 - Step 6: Final answer
x = 438,658,154.55
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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.