Finding the Fourth Proportional to 842,831,516,974.69, 1,163,108,354,229.40 and 457,455,942,278.02
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Solution
The fourth proportional to 842,831,516,974.69, 1,163,108,354,229.40 and 457,455,942,278.02 is: 631,289,667,554.55
Step by Step Solution
- Step 1: Write the proportion equation
842,831,516,974.69 : 1,163,108,354,229.40 = 457,455,942,278.02 : x - Step 2: Convert to fraction form
842,831,516,974.69/1,163,108,354,229.40 = 457,455,942,278.02/x - Step 3: Cross multiply
842,831,516,974.69x = 1,163,108,354,229.40 × 457,455,942,278.02 - Step 4: Simplify right side
842,831,516,974.69x = 532,070,828,155,447,216,701,440 - Step 5: Solve for x
x = 532,070,828,155,447,216,701,440/842,831,516,974.69 - Step 6: Final answer
x = 631,289,667,554.55
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Double scale
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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.