Finding the Fourth Proportional to 876,654,008.80, 1,312,464,430.80 and 851,488,184.80
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Solution
The fourth proportional to 876,654,008.80, 1,312,464,430.80 and 851,488,184.80 is: 1,274,787,937.52
Step by Step Solution
- Step 1: Write the proportion equation
876,654,008.80 : 1,312,464,430.80 = 851,488,184.80 : x - Step 2: Convert to fraction form
876,654,008.80/1,312,464,430.80 = 851,488,184.80/x - Step 3: Cross multiply
876,654,008.80x = 1,312,464,430.80 × 851,488,184.80 - Step 4: Simplify right side
876,654,008.80x = 1,117,547,955,796,457,088 - Step 5: Solve for x
x = 1,117,547,955,796,457,088/876,654,008.80 - Step 6: Final answer
x = 1,274,787,937.52
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1.5x scale
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.