Finding the Fourth Proportional to 6,518,559,875.60, 9,780,390,730.20 and 2,378,421,909.20
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Solution
The fourth proportional to 6,518,559,875.60, 9,780,390,730.20 and 2,378,421,909.20 is: 3,568,563,614.84
Step by Step Solution
- Step 1: Write the proportion equation
6,518,559,875.60 : 9,780,390,730.20 = 2,378,421,909.20 : x - Step 2: Convert to fraction form
6,518,559,875.60/9,780,390,730.20 = 2,378,421,909.20/x - Step 3: Cross multiply
6,518,559,875.60x = 9,780,390,730.20 × 2,378,421,909.20 - Step 4: Simplify right side
6,518,559,875.60x = 23,261,895,593,244,266,496 - Step 5: Solve for x
x = 23,261,895,593,244,266,496/6,518,559,875.60 - Step 6: Final answer
x = 3,568,563,614.84
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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.