Finding the Fourth Proportional to 98,634,903.60, 148,235,790.60 and 86,163,754.80
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Solution
The fourth proportional to 98,634,903.60, 148,235,790.60 and 86,163,754.80 is: 129,493,230.57
Step by Step Solution
- Step 1: Write the proportion equation
98,634,903.60 : 148,235,790.60 = 86,163,754.80 : x - Step 2: Convert to fraction form
98,634,903.60/148,235,790.60 = 86,163,754.80/x - Step 3: Cross multiply
98,634,903.60x = 148,235,790.60 × 86,163,754.80 - Step 4: Simplify right side
98,634,903.60x = 12,772,552,313,842,544 - Step 5: Solve for x
x = 12,772,552,313,842,544/98,634,903.60 - Step 6: Final answer
x = 129,493,230.57
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.