Finding the Fourth Proportional to 239,589,781,155.81, 359,406,764,726.80 and 78,242,033,551.05
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Solution
The fourth proportional to 239,589,781,155.81, 359,406,764,726.80 and 78,242,033,551.05 is: 117,370,265,161.44
Step by Step Solution
- Step 1: Write the proportion equation
239,589,781,155.81 : 359,406,764,726.80 = 78,242,033,551.05 : x - Step 2: Convert to fraction form
239,589,781,155.81/359,406,764,726.80 = 78,242,033,551.05/x - Step 3: Cross multiply
239,589,781,155.81x = 359,406,764,726.80 × 78,242,033,551.05 - Step 4: Simplify right side
239,589,781,155.81x = 28,120,716,144,228,620,566,528 - Step 5: Solve for x
x = 28,120,716,144,228,620,566,528/239,589,781,155.81 - Step 6: Final answer
x = 117,370,265,161.44
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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.