Finding the Fourth Proportional to 97,880,870.18, 135,079,069.87 and 53,831,275.83
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Solution
The fourth proportional to 97,880,870.18, 135,079,069.87 and 53,831,275.83 is: 74,289,068.49
Step by Step Solution
- Step 1: Write the proportion equation
97,880,870.18 : 135,079,069.87 = 53,831,275.83 : x - Step 2: Convert to fraction form
97,880,870.18/135,079,069.87 = 53,831,275.83/x - Step 3: Cross multiply
97,880,870.18x = 135,079,069.87 × 53,831,275.83 - Step 4: Simplify right side
97,880,870.18x = 7,271,478,669,099,101 - Step 5: Solve for x
x = 7,271,478,669,099,101/97,880,870.18 - Step 6: Final answer
x = 74,289,068.49
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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.