Finding the Fourth Proportional to 976,637,396.84, 1,347,426,279.42 and 605,223,910.76
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Solution
The fourth proportional to 976,637,396.84, 1,347,426,279.42 and 605,223,910.76 is: 835,002,432.77
Step by Step Solution
- Step 1: Write the proportion equation
976,637,396.84 : 1,347,426,279.42 = 605,223,910.76 : x - Step 2: Convert to fraction form
976,637,396.84/1,347,426,279.42 = 605,223,910.76/x - Step 3: Cross multiply
976,637,396.84x = 1,347,426,279.42 × 605,223,910.76 - Step 4: Simplify right side
976,637,396.84x = 815,494,602,291,368,960 - Step 5: Solve for x
x = 815,494,602,291,368,960/976,637,396.84 - Step 6: Final answer
x = 835,002,432.77
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Double scale
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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.