Home / 426,473,011.60-639,709,512.60-103,356,883.60

Finding the Fourth Proportional to 426,473,011.60, 639,709,512.60 and 103,356,883.60

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Solution

The fourth proportional to 426,473,011.60, 639,709,512.60 and 103,356,883.60 is: 155,035,324.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,473,011.60 : 639,709,512.60 = 103,356,883.60 : x
  2. Step 2: Convert to fraction form
    426,473,011.60/639,709,512.60 = 103,356,883.60/x
  3. Step 3: Cross multiply
    426,473,011.60x = 639,709,512.60 × 103,356,883.60
  4. Step 4: Simplify right side
    426,473,011.60x = 66,118,381,631,610,936
  5. Step 5: Solve for x
    x = 66,118,381,631,610,936/426,473,011.60
  6. Step 6: Final answer
    x = 155,035,324.24

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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.