Finding the Fourth Proportional to 1,470,479,421.60, 2,205,719,132.40 and 1,309,771,663.20
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Solution
The fourth proportional to 1,470,479,421.60, 2,205,719,132.40 and 1,309,771,663.20 is: 1,964,657,494.80
Step by Step Solution
- Step 1: Write the proportion equation
1,470,479,421.60 : 2,205,719,132.40 = 1,309,771,663.20 : x - Step 2: Convert to fraction form
1,470,479,421.60/2,205,719,132.40 = 1,309,771,663.20/x - Step 3: Cross multiply
1,470,479,421.60x = 2,205,719,132.40 × 1,309,771,663.20 - Step 4: Simplify right side
1,470,479,421.60x = 2,888,988,416,595,609,088 - Step 5: Solve for x
x = 2,888,988,416,595,609,088/1,470,479,421.60 - Step 6: Final answer
x = 1,964,657,494.80
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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.