Finding the Fourth Proportional to 1,230,381,553.08, 1,697,937,131.70 and 701,772,314.70
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Solution
The fourth proportional to 1,230,381,553.08, 1,697,937,131.70 and 701,772,314.70 is: 968,451,833.62
Step by Step Solution
- Step 1: Write the proportion equation
1,230,381,553.08 : 1,697,937,131.70 = 701,772,314.70 : x - Step 2: Convert to fraction form
1,230,381,553.08/1,697,937,131.70 = 701,772,314.70/x - Step 3: Cross multiply
1,230,381,553.08x = 1,697,937,131.70 × 701,772,314.70 - Step 4: Simplify right side
1,230,381,553.08x = 1,191,565,271,128,187,904 - Step 5: Solve for x
x = 1,191,565,271,128,187,904/1,230,381,553.08 - Step 6: Final answer
x = 968,451,833.62
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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.