Finding the Fourth Proportional to 1,575,936,486.40, 2,363,904,729.60 and 655,506,918.40
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Solution
The fourth proportional to 1,575,936,486.40, 2,363,904,729.60 and 655,506,918.40 is: 983,260,377.60
Step by Step Solution
- Step 1: Write the proportion equation
1,575,936,486.40 : 2,363,904,729.60 = 655,506,918.40 : x - Step 2: Convert to fraction form
1,575,936,486.40/2,363,904,729.60 = 655,506,918.40/x - Step 3: Cross multiply
1,575,936,486.40x = 2,363,904,729.60 × 655,506,918.40 - Step 4: Simplify right side
1,575,936,486.40x = 1,549,555,904,691,281,152 - Step 5: Solve for x
x = 1,549,555,904,691,281,152/1,575,936,486.40 - Step 6: Final answer
x = 983,260,377.60
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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.