Home / 258,974,005.20-388,461,007.80-230,756,456.40

Finding the Fourth Proportional to 258,974,005.20, 388,461,007.80 and 230,756,456.40

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Solution

The fourth proportional to 258,974,005.20, 388,461,007.80 and 230,756,456.40 is: 346,134,684.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,974,005.20 : 388,461,007.80 = 230,756,456.40 : x
  2. Step 2: Convert to fraction form
    258,974,005.20/388,461,007.80 = 230,756,456.40/x
  3. Step 3: Cross multiply
    258,974,005.20x = 388,461,007.80 × 230,756,456.40
  4. Step 4: Simplify right side
    258,974,005.20x = 89,639,885,609,500,768
  5. Step 5: Solve for x
    x = 89,639,885,609,500,768/258,974,005.20
  6. Step 6: Final answer
    x = 346,134,684.60

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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.