Finding the Fourth Proportional to 390,389,031.84, 585,559,588.80 and 160,352,148.80
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Solution
The fourth proportional to 390,389,031.84, 585,559,588.80 and 160,352,148.80 is: 240,518,382.07
Step by Step Solution
- Step 1: Write the proportion equation
390,389,031.84 : 585,559,588.80 = 160,352,148.80 : x - Step 2: Convert to fraction form
390,389,031.84/585,559,588.80 = 160,352,148.80/x - Step 3: Cross multiply
390,389,031.84x = 585,559,588.80 × 160,352,148.80 - Step 4: Simplify right side
390,389,031.84x = 93,895,738,314,524,416 - Step 5: Solve for x
x = 93,895,738,314,524,416/390,389,031.84 - Step 6: Final answer
x = 240,518,382.07
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.