Finding the Fourth Proportional to 124,562,985.68, 171,862,403.20 and 71,636,808.08
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Solution
The fourth proportional to 124,562,985.68, 171,862,403.20 and 71,636,808.08 is: 98,838,944.23
Step by Step Solution
- Step 1: Write the proportion equation
124,562,985.68 : 171,862,403.20 = 71,636,808.08 : x - Step 2: Convert to fraction form
124,562,985.68/171,862,403.20 = 71,636,808.08/x - Step 3: Cross multiply
124,562,985.68x = 171,862,403.20 × 71,636,808.08 - Step 4: Simplify right side
124,562,985.68x = 12,311,673,994,205,976 - Step 5: Solve for x
x = 12,311,673,994,205,976/124,562,985.68 - Step 6: Final answer
x = 98,838,944.23
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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.