Home / 163,775,299.20-245,662,948.80-77,681,857.20

Finding the Fourth Proportional to 163,775,299.20, 245,662,948.80 and 77,681,857.20

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Solution

The fourth proportional to 163,775,299.20, 245,662,948.80 and 77,681,857.20 is: 116,522,785.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,775,299.20 : 245,662,948.80 = 77,681,857.20 : x
  2. Step 2: Convert to fraction form
    163,775,299.20/245,662,948.80 = 77,681,857.20/x
  3. Step 3: Cross multiply
    163,775,299.20x = 245,662,948.80 × 77,681,857.20
  4. Step 4: Simplify right side
    163,775,299.20x = 19,083,554,108,012,512
  5. Step 5: Solve for x
    x = 19,083,554,108,012,512/163,775,299.20
  6. Step 6: Final answer
    x = 116,522,785.80

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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.