Finding the Fourth Proportional to 750,420,313.41, 1,035,580,130.79 and 415,914,431.85
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Solution
The fourth proportional to 750,420,313.41, 1,035,580,130.79 and 415,914,431.85 is: 573,961,970.43
Step by Step Solution
- Step 1: Write the proportion equation
750,420,313.41 : 1,035,580,130.79 = 415,914,431.85 : x - Step 2: Convert to fraction form
750,420,313.41/1,035,580,130.79 = 415,914,431.85/x - Step 3: Cross multiply
750,420,313.41x = 1,035,580,130.79 × 415,914,431.85 - Step 4: Simplify right side
750,420,313.41x = 430,712,721,732,671,552 - Step 5: Solve for x
x = 430,712,721,732,671,552/750,420,313.41 - Step 6: Final answer
x = 573,961,970.43
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.