Home / 258,974,007.20-388,461,010.80-230,756,458.40

Finding the Fourth Proportional to 258,974,007.20, 388,461,010.80 and 230,756,458.40

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Solution

The fourth proportional to 258,974,007.20, 388,461,010.80 and 230,756,458.40 is: 346,134,687.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,974,007.20 : 388,461,010.80 = 230,756,458.40 : x
  2. Step 2: Convert to fraction form
    258,974,007.20/388,461,010.80 = 230,756,458.40/x
  3. Step 3: Cross multiply
    258,974,007.20x = 388,461,010.80 × 230,756,458.40
  4. Step 4: Simplify right side
    258,974,007.20x = 89,639,887,078,692,160
  5. Step 5: Solve for x
    x = 89,639,887,078,692,160/258,974,007.20
  6. Step 6: Final answer
    x = 346,134,687.60

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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.