Home / 1,225,644,771-1,689,413,938.02-829,023,119.40

Finding the Fourth Proportional to 1,225,644,771, 1,689,413,938.02 and 829,023,119.40

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Solution

The fourth proportional to 1,225,644,771, 1,689,413,938.02 and 829,023,119.40 is: 1,142,715,447.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,644,771 : 1,689,413,938.02 = 829,023,119.40 : x
  2. Step 2: Convert to fraction form
    1,225,644,771/1,689,413,938.02 = 829,023,119.40/x
  3. Step 3: Cross multiply
    1,225,644,771x = 1,689,413,938.02 × 829,023,119.40
  4. Step 4: Simplify right side
    1,225,644,771x = 1,400,563,212,855,178,496
  5. Step 5: Solve for x
    x = 1,400,563,212,855,178,496/1,225,644,771
  6. Step 6: Final answer
    x = 1,142,715,447.41

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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.