Finding the Fourth Proportional to 830,955,190.77, 1,146,684,276.99 and 478,544,460.21
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Solution
The fourth proportional to 830,955,190.77, 1,146,684,276.99 and 478,544,460.21 is: 660,371,840.09
Step by Step Solution
- Step 1: Write the proportion equation
830,955,190.77 : 1,146,684,276.99 = 478,544,460.21 : x - Step 2: Convert to fraction form
830,955,190.77/1,146,684,276.99 = 478,544,460.21/x - Step 3: Cross multiply
830,955,190.77x = 1,146,684,276.99 × 478,544,460.21 - Step 4: Simplify right side
830,955,190.77x = 548,739,408,363,473,664 - Step 5: Solve for x
x = 548,739,408,363,473,664/830,955,190.77 - Step 6: Final answer
x = 660,371,840.09
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1.5x scale
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.