Finding the Fourth Proportional to 984,386,425.80, 1,476,579,638.70 and 824,337,683.40
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Solution
The fourth proportional to 984,386,425.80, 1,476,579,638.70 and 824,337,683.40 is: 1,236,506,525.10
Step by Step Solution
- Step 1: Write the proportion equation
984,386,425.80 : 1,476,579,638.70 = 824,337,683.40 : x - Step 2: Convert to fraction form
984,386,425.80/1,476,579,638.70 = 824,337,683.40/x - Step 3: Cross multiply
984,386,425.80x = 1,476,579,638.70 × 824,337,683.40 - Step 4: Simplify right side
984,386,425.80x = 1,217,200,238,721,566,976 - Step 5: Solve for x
x = 1,217,200,238,721,566,976/984,386,425.80 - Step 6: Final answer
x = 1,236,506,525.10
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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.