Home / 139,718,857.20-209,578,285.80-63,191,353.20

Finding the Fourth Proportional to 139,718,857.20, 209,578,285.80 and 63,191,353.20

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Solution

The fourth proportional to 139,718,857.20, 209,578,285.80 and 63,191,353.20 is: 94,787,029.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,718,857.20 : 209,578,285.80 = 63,191,353.20 : x
  2. Step 2: Convert to fraction form
    139,718,857.20/209,578,285.80 = 63,191,353.20/x
  3. Step 3: Cross multiply
    139,718,857.20x = 209,578,285.80 × 63,191,353.20
  4. Step 4: Simplify right side
    139,718,857.20x = 13,243,535,481,038,346
  5. Step 5: Solve for x
    x = 13,243,535,481,038,346/139,718,857.20
  6. Step 6: Final answer
    x = 94,787,029.80

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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.