Finding the Fourth Proportional to 1,422,909,348.08, 1,963,676,269.16 and 787,829,834.48
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Solution
The fourth proportional to 1,422,909,348.08, 1,963,676,269.16 and 787,829,834.48 is: 1,087,239,149.98
Step by Step Solution
- Step 1: Write the proportion equation
1,422,909,348.08 : 1,963,676,269.16 = 787,829,834.48 : x - Step 2: Convert to fraction form
1,422,909,348.08/1,963,676,269.16 = 787,829,834.48/x - Step 3: Cross multiply
1,422,909,348.08x = 1,963,676,269.16 × 787,829,834.48 - Step 4: Simplify right side
1,422,909,348.08x = 1,547,042,750,104,626,944 - Step 5: Solve for x
x = 1,547,042,750,104,626,944/1,422,909,348.08 - Step 6: Final answer
x = 1,087,239,149.98
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.