Finding the Fourth Proportional to 402,912,357.60, 604,368,536.40 and 315,236,402.40
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Solution
The fourth proportional to 402,912,357.60, 604,368,536.40 and 315,236,402.40 is: 472,854,603.60
Step by Step Solution
- Step 1: Write the proportion equation
402,912,357.60 : 604,368,536.40 = 315,236,402.40 : x - Step 2: Convert to fraction form
402,912,357.60/604,368,536.40 = 315,236,402.40/x - Step 3: Cross multiply
402,912,357.60x = 604,368,536.40 × 315,236,402.40 - Step 4: Simplify right side
402,912,357.60x = 190,518,963,138,489,440 - Step 5: Solve for x
x = 190,518,963,138,489,440/402,912,357.60 - Step 6: Final answer
x = 472,854,603.60
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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.