Finding the Fourth Proportional to 703,607,748.21, 970,575,281.08 and 438,830,055.41
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Solution
The fourth proportional to 703,607,748.21, 970,575,281.08 and 438,830,055.41 is: 605,333,874.53
Step by Step Solution
- Step 1: Write the proportion equation
703,607,748.21 : 970,575,281.08 = 438,830,055.41 : x - Step 2: Convert to fraction form
703,607,748.21/970,575,281.08 = 438,830,055.41/x - Step 3: Cross multiply
703,607,748.21x = 970,575,281.08 × 438,830,055.41 - Step 4: Simplify right side
703,607,748.21x = 425,917,604,369,971,520 - Step 5: Solve for x
x = 425,917,604,369,971,520/703,607,748.21 - Step 6: Final answer
x = 605,333,874.53
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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.