Finding the Fourth Proportional to 99,762,495.30, 149,643,742.95 and 65,722,277.70
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Solution
The fourth proportional to 99,762,495.30, 149,643,742.95 and 65,722,277.70 is: 98,583,416.55
Step by Step Solution
- Step 1: Write the proportion equation
99,762,495.30 : 149,643,742.95 = 65,722,277.70 : x - Step 2: Convert to fraction form
99,762,495.30/149,643,742.95 = 65,722,277.70/x - Step 3: Cross multiply
99,762,495.30x = 149,643,742.95 × 65,722,277.70 - Step 4: Simplify right side
99,762,495.30x = 9,834,927,630,227,316 - Step 5: Solve for x
x = 9,834,927,630,227,316/99,762,495.30 - Step 6: Final answer
x = 98,583,416.55
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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.