Finding the Fourth Proportional to 329,312,081.80, 493,968,122.70 and 86,974,985.80
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Solution
The fourth proportional to 329,312,081.80, 493,968,122.70 and 86,974,985.80 is: 130,462,478.70
Step by Step Solution
- Step 1: Write the proportion equation
329,312,081.80 : 493,968,122.70 = 86,974,985.80 : x - Step 2: Convert to fraction form
329,312,081.80/493,968,122.70 = 86,974,985.80/x - Step 3: Cross multiply
329,312,081.80x = 493,968,122.70 × 86,974,985.80 - Step 4: Simplify right side
329,312,081.80x = 42,962,870,457,485,152 - Step 5: Solve for x
x = 42,962,870,457,485,152/329,312,081.80 - Step 6: Final answer
x = 130,462,478.70
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1.5x scale
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.