Finding the Fourth Proportional to 343,854,208.60, 515,781,312.90 and 306,230,810.20
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Solution
The fourth proportional to 343,854,208.60, 515,781,312.90 and 306,230,810.20 is: 459,346,215.30
Step by Step Solution
- Step 1: Write the proportion equation
343,854,208.60 : 515,781,312.90 = 306,230,810.20 : x - Step 2: Convert to fraction form
343,854,208.60/515,781,312.90 = 306,230,810.20/x - Step 3: Cross multiply
343,854,208.60x = 515,781,312.90 × 306,230,810.20 - Step 4: Simplify right side
343,854,208.60x = 157,948,129,335,386,688 - Step 5: Solve for x
x = 157,948,129,335,386,688/343,854,208.60 - Step 6: Final answer
x = 459,346,215.30
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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.