Home / 501,210,603.43-691,614,533.77-278,201,685.81

Finding the Fourth Proportional to 501,210,603.43, 691,614,533.77 and 278,201,685.81

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Solution

The fourth proportional to 501,210,603.43, 691,614,533.77 and 278,201,685.81 is: 383,887,188.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,210,603.43 : 691,614,533.77 = 278,201,685.81 : x
  2. Step 2: Convert to fraction form
    501,210,603.43/691,614,533.77 = 278,201,685.81/x
  3. Step 3: Cross multiply
    501,210,603.43x = 691,614,533.77 × 278,201,685.81
  4. Step 4: Simplify right side
    501,210,603.43x = 192,408,329,227,409,248
  5. Step 5: Solve for x
    x = 192,408,329,227,409,248/501,210,603.43
  6. Step 6: Final answer
    x = 383,887,188.16

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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.