Finding the Fourth Proportional to 742,176,543.60, 1,113,264,815.40 and 699,850,220.40
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Solution
The fourth proportional to 742,176,543.60, 1,113,264,815.40 and 699,850,220.40 is: 1,049,775,330.60
Step by Step Solution
- Step 1: Write the proportion equation
742,176,543.60 : 1,113,264,815.40 = 699,850,220.40 : x - Step 2: Convert to fraction form
742,176,543.60/1,113,264,815.40 = 699,850,220.40/x - Step 3: Cross multiply
742,176,543.60x = 1,113,264,815.40 × 699,850,220.40 - Step 4: Simplify right side
742,176,543.60x = 779,118,626,421,255,296 - Step 5: Solve for x
x = 779,118,626,421,255,296/742,176,543.60 - Step 6: Final answer
x = 1,049,775,330.60
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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.