Finding the Fourth Proportional to 553,312,276.80, 829,968,415.20 and 144,368,427.30
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Solution
The fourth proportional to 553,312,276.80, 829,968,415.20 and 144,368,427.30 is: 216,552,640.95
Step by Step Solution
- Step 1: Write the proportion equation
553,312,276.80 : 829,968,415.20 = 144,368,427.30 : x - Step 2: Convert to fraction form
553,312,276.80/829,968,415.20 = 144,368,427.30/x - Step 3: Cross multiply
553,312,276.80x = 829,968,415.20 × 144,368,427.30 - Step 4: Simplify right side
553,312,276.80x = 119,821,234,811,097,424 - Step 5: Solve for x
x = 119,821,234,811,097,424/553,312,276.80 - Step 6: Final answer
x = 216,552,640.95
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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.