Finding the Fourth Proportional to 85,838,372.10, 128,757,558.42 and 70,630,794.36
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Solution
The fourth proportional to 85,838,372.10, 128,757,558.42 and 70,630,794.36 is: 105,946,191.76
Step by Step Solution
- Step 1: Write the proportion equation
85,838,372.10 : 128,757,558.42 = 70,630,794.36 : x - Step 2: Convert to fraction form
85,838,372.10/128,757,558.42 = 70,630,794.36/x - Step 3: Cross multiply
85,838,372.10x = 128,757,558.42 × 70,630,794.36 - Step 4: Simplify right side
85,838,372.10x = 9,094,248,631,058,706 - Step 5: Solve for x
x = 9,094,248,631,058,706/85,838,372.10 - Step 6: Final answer
x = 105,946,191.76
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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.