Home / 501,210,607.42-691,614,539.28-278,201,689.82

Finding the Fourth Proportional to 501,210,607.42, 691,614,539.28 and 278,201,689.82

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Solution

The fourth proportional to 501,210,607.42, 691,614,539.28 and 278,201,689.82 is: 383,887,193.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,210,607.42 : 691,614,539.28 = 278,201,689.82 : x
  2. Step 2: Convert to fraction form
    501,210,607.42/691,614,539.28 = 278,201,689.82/x
  3. Step 3: Cross multiply
    501,210,607.42x = 691,614,539.28 × 278,201,689.82
  4. Step 4: Simplify right side
    501,210,607.42x = 192,408,333,531,776,768
  5. Step 5: Solve for x
    x = 192,408,333,531,776,768/501,210,607.42
  6. Step 6: Final answer
    x = 383,887,193.69

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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.