Finding the Fourth Proportional to 76,929,803,556.99, 106,163,138,971.68 and 42,637,724,025.29
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Solution
The fourth proportional to 76,929,803,556.99, 106,163,138,971.68 and 42,637,724,025.29 is: 58,840,064,732.26
Step by Step Solution
- Step 1: Write the proportion equation
76,929,803,556.99 : 106,163,138,971.68 = 42,637,724,025.29 : x - Step 2: Convert to fraction form
76,929,803,556.99/106,163,138,971.68 = 42,637,724,025.29/x - Step 3: Cross multiply
76,929,803,556.99x = 106,163,138,971.68 × 42,637,724,025.29 - Step 4: Simplify right side
76,929,803,556.99x = 4,526,554,621,133,319,569,408 - Step 5: Solve for x
x = 4,526,554,621,133,319,569,408/76,929,803,556.99 - Step 6: Final answer
x = 58,840,064,732.26
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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.