Home / 268,139,905.20-402,209,857.80-166,103,233.20

Finding the Fourth Proportional to 268,139,905.20, 402,209,857.80 and 166,103,233.20

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Solution

The fourth proportional to 268,139,905.20, 402,209,857.80 and 166,103,233.20 is: 249,154,849.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,139,905.20 : 402,209,857.80 = 166,103,233.20 : x
  2. Step 2: Convert to fraction form
    268,139,905.20/402,209,857.80 = 166,103,233.20/x
  3. Step 3: Cross multiply
    268,139,905.20x = 402,209,857.80 × 166,103,233.20
  4. Step 4: Simplify right side
    268,139,905.20x = 66,808,357,805,492,240
  5. Step 5: Solve for x
    x = 66,808,357,805,492,240/268,139,905.20
  6. Step 6: Final answer
    x = 249,154,849.80

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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.