Finding the Fourth Proportional to 1,559,539,409.28, 2,151,926,352.99 and 881,108,816.55
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Solution
The fourth proportional to 1,559,539,409.28, 2,151,926,352.99 and 881,108,816.55 is: 1,215,795,683.59
Step by Step Solution
- Step 1: Write the proportion equation
1,559,539,409.28 : 2,151,926,352.99 = 881,108,816.55 : x - Step 2: Convert to fraction form
1,559,539,409.28/2,151,926,352.99 = 881,108,816.55/x - Step 3: Cross multiply
1,559,539,409.28x = 2,151,926,352.99 × 881,108,816.55 - Step 4: Simplify right side
1,559,539,409.28x = 1,896,081,282,185,776,128 - Step 5: Solve for x
x = 1,896,081,282,185,776,128/1,559,539,409.28 - Step 6: Final answer
x = 1,215,795,683.59
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1.5x scale
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.