Home / 426,473,003.10-639,709,499.85-103,356,875.10

Finding the Fourth Proportional to 426,473,003.10, 639,709,499.85 and 103,356,875.10

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Solution

The fourth proportional to 426,473,003.10, 639,709,499.85 and 103,356,875.10 is: 155,035,311.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,473,003.10 : 639,709,499.85 = 103,356,875.10 : x
  2. Step 2: Convert to fraction form
    426,473,003.10/639,709,499.85 = 103,356,875.10/x
  3. Step 3: Cross multiply
    426,473,003.10x = 639,709,499.85 × 103,356,875.10
  4. Step 4: Simplify right side
    426,473,003.10x = 66,118,374,876,279,920
  5. Step 5: Solve for x
    x = 66,118,374,876,279,920/426,473,003.10
  6. Step 6: Final answer
    x = 155,035,311.49

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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.