Finding the Fourth Proportional to 976,897,848.60, 1,465,346,772.90 and 970,095,403.80
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Solution
The fourth proportional to 976,897,848.60, 1,465,346,772.90 and 970,095,403.80 is: 1,455,143,105.70
Step by Step Solution
- Step 1: Write the proportion equation
976,897,848.60 : 1,465,346,772.90 = 970,095,403.80 : x - Step 2: Convert to fraction form
976,897,848.60/1,465,346,772.90 = 970,095,403.80/x - Step 3: Cross multiply
976,897,848.60x = 1,465,346,772.90 × 970,095,403.80 - Step 4: Simplify right side
976,897,848.60x = 1,421,526,169,363,452,416 - Step 5: Solve for x
x = 1,421,526,169,363,452,416/976,897,848.60 - Step 6: Final answer
x = 1,455,143,105.70
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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.