Finding the Fourth Proportional to 402,935,620.60, 604,403,430.90 and 130,333,943.80
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Solution
The fourth proportional to 402,935,620.60, 604,403,430.90 and 130,333,943.80 is: 195,500,915.70
Step by Step Solution
- Step 1: Write the proportion equation
402,935,620.60 : 604,403,430.90 = 130,333,943.80 : x - Step 2: Convert to fraction form
402,935,620.60/604,403,430.90 = 130,333,943.80/x - Step 3: Cross multiply
402,935,620.60x = 604,403,430.90 × 130,333,943.80 - Step 4: Simplify right side
402,935,620.60x = 78,774,282,795,447,776 - Step 5: Solve for x
x = 78,774,282,795,447,776/402,935,620.60 - Step 6: Final answer
x = 195,500,915.70
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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.