Finding the Fourth Proportional to 1,566,506,509.95, 2,161,937,544.99 and 897,540,289.32
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Solution
The fourth proportional to 1,566,506,509.95, 2,161,937,544.99 and 897,540,289.32 is: 1,238,696,447.99
Step by Step Solution
- Step 1: Write the proportion equation
1,566,506,509.95 : 2,161,937,544.99 = 897,540,289.32 : x - Step 2: Convert to fraction form
1,566,506,509.95/2,161,937,544.99 = 897,540,289.32/x - Step 3: Cross multiply
1,566,506,509.95x = 2,161,937,544.99 × 897,540,289.32 - Step 4: Simplify right side
1,566,506,509.95x = 1,940,426,049,622,095,104 - Step 5: Solve for x
x = 1,940,426,049,622,095,104/1,566,506,509.95 - Step 6: Final answer
x = 1,238,696,447.99
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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.