Finding the Fourth Proportional to 99,828,000.20, 149,742,000.30 and 70,602,681.80
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Solution
The fourth proportional to 99,828,000.20, 149,742,000.30 and 70,602,681.80 is: 105,904,022.70
Step by Step Solution
- Step 1: Write the proportion equation
99,828,000.20 : 149,742,000.30 = 70,602,681.80 : x - Step 2: Convert to fraction form
99,828,000.20/149,742,000.30 = 70,602,681.80/x - Step 3: Cross multiply
99,828,000.20x = 149,742,000.30 × 70,602,681.80 - Step 4: Simplify right side
99,828,000.20x = 10,572,186,799,276,404 - Step 5: Solve for x
x = 10,572,186,799,276,404/99,828,000.20 - Step 6: Final answer
x = 105,904,022.70
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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.