Home / 139,718,858.20-209,578,287.30-63,191,354.20

Finding the Fourth Proportional to 139,718,858.20, 209,578,287.30 and 63,191,354.20

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Solution

The fourth proportional to 139,718,858.20, 209,578,287.30 and 63,191,354.20 is: 94,787,031.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,718,858.20 : 209,578,287.30 = 63,191,354.20 : x
  2. Step 2: Convert to fraction form
    139,718,858.20/209,578,287.30 = 63,191,354.20/x
  3. Step 3: Cross multiply
    139,718,858.20x = 209,578,287.30 × 63,191,354.20
  4. Step 4: Simplify right side
    139,718,858.20x = 13,243,535,785,403,664
  5. Step 5: Solve for x
    x = 13,243,535,785,403,664/139,718,858.20
  6. Step 6: Final answer
    x = 94,787,031.30

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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.