Finding the Fourth Proportional to 371,572,419.60, 557,358,629.40 and 249,128,413.20
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Solution
The fourth proportional to 371,572,419.60, 557,358,629.40 and 249,128,413.20 is: 373,692,619.80
Step by Step Solution
- Step 1: Write the proportion equation
371,572,419.60 : 557,358,629.40 = 249,128,413.20 : x - Step 2: Convert to fraction form
371,572,419.60/557,358,629.40 = 249,128,413.20/x - Step 3: Cross multiply
371,572,419.60x = 557,358,629.40 × 249,128,413.20 - Step 4: Simplify right side
371,572,419.60x = 138,853,870,925,748,848 - Step 5: Solve for x
x = 138,853,870,925,748,848/371,572,419.60 - Step 6: Final answer
x = 373,692,619.80
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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.