Finding the Fourth Proportional to 976,897,416.60, 1,465,346,124.90 and 970,094,971.80
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Solution
The fourth proportional to 976,897,416.60, 1,465,346,124.90 and 970,094,971.80 is: 1,455,142,457.70
Step by Step Solution
- Step 1: Write the proportion equation
976,897,416.60 : 1,465,346,124.90 = 970,094,971.80 : x - Step 2: Convert to fraction form
976,897,416.60/1,465,346,124.90 = 970,094,971.80/x - Step 3: Cross multiply
976,897,416.60x = 1,465,346,124.90 × 970,094,971.80 - Step 4: Simplify right side
976,897,416.60x = 1,421,524,907,712,104,704 - Step 5: Solve for x
x = 1,421,524,907,712,104,704/976,897,416.60 - Step 6: Final answer
x = 1,455,142,457.70
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Double scale
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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.