Finding the Fourth Proportional to 1,421,152,937.20, 2,135,312,586.60 and 903,831,209.20
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Solution
The fourth proportional to 1,421,152,937.20, 2,135,312,586.60 and 903,831,209.20 is: 1,358,025,661.17
Step by Step Solution
- Step 1: Write the proportion equation
1,421,152,937.20 : 2,135,312,586.60 = 903,831,209.20 : x - Step 2: Convert to fraction form
1,421,152,937.20/2,135,312,586.60 = 903,831,209.20/x - Step 3: Cross multiply
1,421,152,937.20x = 2,135,312,586.60 × 903,831,209.20 - Step 4: Simplify right side
1,421,152,937.20x = 1,929,962,157,166,657,792 - Step 5: Solve for x
x = 1,929,962,157,166,657,792/1,421,152,937.20 - Step 6: Final answer
x = 1,358,025,661.17
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.