Finding the Fourth Proportional to 1,361,393,875.49, 1,878,698,031.14 and 832,719,025.90
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Solution
The fourth proportional to 1,361,393,875.49, 1,878,698,031.14 and 832,719,025.90 is: 1,149,136,647.82
Step by Step Solution
- Step 1: Write the proportion equation
1,361,393,875.49 : 1,878,698,031.14 = 832,719,025.90 : x - Step 2: Convert to fraction form
1,361,393,875.49/1,878,698,031.14 = 832,719,025.90/x - Step 3: Cross multiply
1,361,393,875.49x = 1,878,698,031.14 × 832,719,025.90 - Step 4: Simplify right side
1,361,393,875.49x = 1,564,427,594,437,591,552 - Step 5: Solve for x
x = 1,564,427,594,437,591,552/1,361,393,875.49 - Step 6: Final answer
x = 1,149,136,647.82
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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.