Finding the Fourth Proportional to 249,291,781.76, 373,919,957.84 and 76,750,603.76
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Solution
The fourth proportional to 249,291,781.76, 373,919,957.84 and 76,750,603.76 is: 115,120,451.70
Step by Step Solution
- Step 1: Write the proportion equation
249,291,781.76 : 373,919,957.84 = 76,750,603.76 : x - Step 2: Convert to fraction form
249,291,781.76/373,919,957.84 = 76,750,603.76/x - Step 3: Cross multiply
249,291,781.76x = 373,919,957.84 × 76,750,603.76 - Step 4: Simplify right side
249,291,781.76x = 28,698,582,522,133,744 - Step 5: Solve for x
x = 28,698,582,522,133,744/249,291,781.76 - Step 6: Final answer
x = 115,120,451.70
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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.