Finding the Fourth Proportional to 1,092,537,641.80, 1,638,806,462.70 and 977,746,385.80
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Solution
The fourth proportional to 1,092,537,641.80, 1,638,806,462.70 and 977,746,385.80 is: 1,466,619,578.70
Step by Step Solution
- Step 1: Write the proportion equation
1,092,537,641.80 : 1,638,806,462.70 = 977,746,385.80 : x - Step 2: Convert to fraction form
1,092,537,641.80/1,638,806,462.70 = 977,746,385.80/x - Step 3: Cross multiply
1,092,537,641.80x = 1,638,806,462.70 × 977,746,385.80 - Step 4: Simplify right side
1,092,537,641.80x = 1,602,337,095,930,607,360 - Step 5: Solve for x
x = 1,602,337,095,930,607,360/1,092,537,641.80 - Step 6: Final answer
x = 1,466,619,578.70
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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.