Finding the Fourth Proportional to 1,679,617,643.80, 2,519,426,465.70 and 1,068,909,266.20
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Solution
The fourth proportional to 1,679,617,643.80, 2,519,426,465.70 and 1,068,909,266.20 is: 1,603,363,899.30
Step by Step Solution
- Step 1: Write the proportion equation
1,679,617,643.80 : 2,519,426,465.70 = 1,068,909,266.20 : x - Step 2: Convert to fraction form
1,679,617,643.80/2,519,426,465.70 = 1,068,909,266.20/x - Step 3: Cross multiply
1,679,617,643.80x = 2,519,426,465.70 × 1,068,909,266.20 - Step 4: Simplify right side
1,679,617,643.80x = 2,693,038,294,696,246,272 - Step 5: Solve for x
x = 2,693,038,294,696,246,272/1,679,617,643.80 - Step 6: Final answer
x = 1,603,363,899.30
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.