Finding the Fourth Proportional to 5,117,430.79, 7,642,967.79 and 4,636,698.10
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Solution
The fourth proportional to 5,117,430.79, 7,642,967.79 and 4,636,698.10 is: 6,924,985.55
Step by Step Solution
- Step 1: Write the proportion equation
5,117,430.79 : 7,642,967.79 = 4,636,698.10 : x - Step 2: Convert to fraction form
5,117,430.79/7,642,967.79 = 4,636,698.10/x - Step 3: Cross multiply
5,117,430.79x = 7,642,967.79 × 4,636,698.10 - Step 4: Simplify right side
5,117,430.79x = 35,438,134,226,178.13 - Step 5: Solve for x
x = 35,438,134,226,178.13/5,117,430.79 - Step 6: Final answer
x = 6,924,985.55
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.