Finding the Fourth Proportional to 4,087,549,237.98, 5,640,820,419.66 and 2,207,955,352.20
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Solution
The fourth proportional to 4,087,549,237.98, 5,640,820,419.66 and 2,207,955,352.20 is: 3,046,979,720.92
Step by Step Solution
- Step 1: Write the proportion equation
4,087,549,237.98 : 5,640,820,419.66 = 2,207,955,352.20 : x - Step 2: Convert to fraction form
4,087,549,237.98/5,640,820,419.66 = 2,207,955,352.20/x - Step 3: Cross multiply
4,087,549,237.98x = 5,640,820,419.66 × 2,207,955,352.20 - Step 4: Simplify right side
4,087,549,237.98x = 12,454,679,636,387,346,432 - Step 5: Solve for x
x = 12,454,679,636,387,346,432/4,087,549,237.98 - Step 6: Final answer
x = 3,046,979,720.92
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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.