Home / 268,647,750.80-402,507,139.80-124,745,440.40

Finding the Fourth Proportional to 268,647,750.80, 402,507,139.80 and 124,745,440.40

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Solution

The fourth proportional to 268,647,750.80, 402,507,139.80 and 124,745,440.40 is: 186,902,478.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,647,750.80 : 402,507,139.80 = 124,745,440.40 : x
  2. Step 2: Convert to fraction form
    268,647,750.80/402,507,139.80 = 124,745,440.40/x
  3. Step 3: Cross multiply
    268,647,750.80x = 402,507,139.80 × 124,745,440.40
  4. Step 4: Simplify right side
    268,647,750.80x = 50,210,930,418,495,368
  5. Step 5: Solve for x
    x = 50,210,930,418,495,368/268,647,750.80
  6. Step 6: Final answer
    x = 186,902,478.32

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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.