Finding the Fourth Proportional to 1,659,032,616.96, 2,289,484,154.88 and 916,461,112.32
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Solution
The fourth proportional to 1,659,032,616.96, 2,289,484,154.88 and 916,461,112.32 is: 1,264,726,909.99
Step by Step Solution
- Step 1: Write the proportion equation
1,659,032,616.96 : 2,289,484,154.88 = 916,461,112.32 : x - Step 2: Convert to fraction form
1,659,032,616.96/2,289,484,154.88 = 916,461,112.32/x - Step 3: Cross multiply
1,659,032,616.96x = 2,289,484,154.88 × 916,461,112.32 - Step 4: Simplify right side
1,659,032,616.96x = 2,098,223,195,220,340,224 - Step 5: Solve for x
x = 2,098,223,195,220,340,224/1,659,032,616.96 - Step 6: Final answer
x = 1,264,726,909.99
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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.