Home / 1,308,044,830.56-1,962,074,330.64-387,929,141.28

Finding the Fourth Proportional to 1,308,044,830.56, 1,962,074,330.64 and 387,929,141.28

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Solution

The fourth proportional to 1,308,044,830.56, 1,962,074,330.64 and 387,929,141.28 is: 581,895,813.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308,044,830.56 : 1,962,074,330.64 = 387,929,141.28 : x
  2. Step 2: Convert to fraction form
    1,308,044,830.56/1,962,074,330.64 = 387,929,141.28/x
  3. Step 3: Cross multiply
    1,308,044,830.56x = 1,962,074,330.64 × 387,929,141.28
  4. Step 4: Simplify right side
    1,308,044,830.56x = 761,145,810,212,705,920
  5. Step 5: Solve for x
    x = 761,145,810,212,705,920/1,308,044,830.56
  6. Step 6: Final answer
    x = 581,895,813.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.