Home / 354,294,890.40-531,442,335.60-297,859,792.80

Finding the Fourth Proportional to 354,294,890.40, 531,442,335.60 and 297,859,792.80

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Solution

The fourth proportional to 354,294,890.40, 531,442,335.60 and 297,859,792.80 is: 446,789,689.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,294,890.40 : 531,442,335.60 = 297,859,792.80 : x
  2. Step 2: Convert to fraction form
    354,294,890.40/531,442,335.60 = 297,859,792.80/x
  3. Step 3: Cross multiply
    354,294,890.40x = 531,442,335.60 × 297,859,792.80
  4. Step 4: Simplify right side
    354,294,890.40x = 158,295,303,966,964,064
  5. Step 5: Solve for x
    x = 158,295,303,966,964,064/354,294,890.40
  6. Step 6: Final answer
    x = 446,789,689.20

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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.