Home / 653,329,346.67-901,401,083.10-388,799,274.51

Finding the Fourth Proportional to 653,329,346.67, 901,401,083.10 and 388,799,274.51

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Solution

The fourth proportional to 653,329,346.67, 901,401,083.10 and 388,799,274.51 is: 536,427,896.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,329,346.67 : 901,401,083.10 = 388,799,274.51 : x
  2. Step 2: Convert to fraction form
    653,329,346.67/901,401,083.10 = 388,799,274.51/x
  3. Step 3: Cross multiply
    653,329,346.67x = 901,401,083.10 × 388,799,274.51
  4. Step 4: Simplify right side
    653,329,346.67x = 350,464,087,151,808,192
  5. Step 5: Solve for x
    x = 350,464,087,151,808,192/653,329,346.67
  6. Step 6: Final answer
    x = 536,427,896.49

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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.