Home / 722,107,564.56-996,480,501.48-392,075,151.12

Finding the Fourth Proportional to 722,107,564.56, 996,480,501.48 and 392,075,151.12

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Solution

The fourth proportional to 722,107,564.56, 996,480,501.48 and 392,075,151.12 is: 541,048,539.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,107,564.56 : 996,480,501.48 = 392,075,151.12 : x
  2. Step 2: Convert to fraction form
    722,107,564.56/996,480,501.48 = 392,075,151.12/x
  3. Step 3: Cross multiply
    722,107,564.56x = 996,480,501.48 × 392,075,151.12
  4. Step 4: Simplify right side
    722,107,564.56x = 390,695,243,205,904,384
  5. Step 5: Solve for x
    x = 390,695,243,205,904,384/722,107,564.56
  6. Step 6: Final answer
    x = 541,048,539.55

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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.