Finding the Fourth Proportional to 318,872,439,685.08, 478,309,119,870.58 and 130,218,335,239.15
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Solution
The fourth proportional to 318,872,439,685.08, 478,309,119,870.58 and 130,218,335,239.15 is: 195,327,690,849.55
Step by Step Solution
- Step 1: Write the proportion equation
318,872,439,685.08 : 478,309,119,870.58 = 130,218,335,239.15 : x - Step 2: Convert to fraction form
318,872,439,685.08/478,309,119,870.58 = 130,218,335,239.15/x - Step 3: Cross multiply
318,872,439,685.08x = 478,309,119,870.58 × 130,218,335,239.15 - Step 4: Simplify right side
318,872,439,685.08x = 62,284,617,319,249,967,316,992 - Step 5: Solve for x
x = 62,284,617,319,249,967,316,992/318,872,439,685.08 - Step 6: Final answer
x = 195,327,690,849.55
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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.