Finding the Fourth Proportional to 708,588,646.95, 1,062,882,970.43 and 665,506,496.55
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Solution
The fourth proportional to 708,588,646.95, 1,062,882,970.43 and 665,506,496.55 is: 998,259,744.83
Step by Step Solution
- Step 1: Write the proportion equation
708,588,646.95 : 1,062,882,970.43 = 665,506,496.55 : x - Step 2: Convert to fraction form
708,588,646.95/1,062,882,970.43 = 665,506,496.55/x - Step 3: Cross multiply
708,588,646.95x = 1,062,882,970.43 × 665,506,496.55 - Step 4: Simplify right side
708,588,646.95x = 707,355,521,890,198,912 - Step 5: Solve for x
x = 707,355,521,890,198,912/708,588,646.95 - Step 6: Final answer
x = 998,259,744.83
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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.