Finding the Fourth Proportional to 680,918,455.80, 1,021,377,683.70 and 465,927,607.80
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Solution
The fourth proportional to 680,918,455.80, 1,021,377,683.70 and 465,927,607.80 is: 698,891,411.70
Step by Step Solution
- Step 1: Write the proportion equation
680,918,455.80 : 1,021,377,683.70 = 465,927,607.80 : x - Step 2: Convert to fraction form
680,918,455.80/1,021,377,683.70 = 465,927,607.80/x - Step 3: Cross multiply
680,918,455.80x = 1,021,377,683.70 × 465,927,607.80 - Step 4: Simplify right side
680,918,455.80x = 475,888,060,826,646,080 - Step 5: Solve for x
x = 475,888,060,826,646,080/680,918,455.80 - Step 6: Final answer
x = 698,891,411.70
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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.