Finding the Fourth Proportional to 1,232,388,312,833.20, 1,700,697,872,417.60 and 683,679,631,957.55
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Solution
The fourth proportional to 1,232,388,312,833.20, 1,700,697,872,417.60 and 683,679,631,957.55 is: 943,479,002,013.89
Step by Step Solution
- Step 1: Write the proportion equation
1,232,388,312,833.20 : 1,700,697,872,417.60 = 683,679,631,957.55 : x - Step 2: Convert to fraction form
1,232,388,312,833.20/1,700,697,872,417.60 = 683,679,631,957.55/x - Step 3: Cross multiply
1,232,388,312,833.20x = 1,700,697,872,417.60 × 683,679,631,957.55 - Step 4: Simplify right side
1,232,388,312,833.20x = 1,162,732,495,485,453,308,264,448 - Step 5: Solve for x
x = 1,162,732,495,485,453,308,264,448/1,232,388,312,833.20 - Step 6: Final answer
x = 943,479,002,013.89
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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.