Finding the Fourth Proportional to 750,420,317.16, 1,035,580,135.95 and 415,914,435.59
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Solution
The fourth proportional to 750,420,317.16, 1,035,580,135.95 and 415,914,435.59 is: 573,961,975.57
Step by Step Solution
- Step 1: Write the proportion equation
750,420,317.16 : 1,035,580,135.95 = 415,914,435.59 : x - Step 2: Convert to fraction form
750,420,317.16/1,035,580,135.95 = 415,914,435.59/x - Step 3: Cross multiply
750,420,317.16x = 1,035,580,135.95 × 415,914,435.59 - Step 4: Simplify right side
750,420,317.16x = 430,712,727,746,681,792 - Step 5: Solve for x
x = 430,712,727,746,681,792/750,420,317.16 - Step 6: Final answer
x = 573,961,975.57
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.