Home / 354,136,905.60-531,205,358.40-280,160,318.40

Finding the Fourth Proportional to 354,136,905.60, 531,205,358.40 and 280,160,318.40

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Solution

The fourth proportional to 354,136,905.60, 531,205,358.40 and 280,160,318.40 is: 420,240,477.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,136,905.60 : 531,205,358.40 = 280,160,318.40 : x
  2. Step 2: Convert to fraction form
    354,136,905.60/531,205,358.40 = 280,160,318.40/x
  3. Step 3: Cross multiply
    354,136,905.60x = 531,205,358.40 × 280,160,318.40
  4. Step 4: Simplify right side
    354,136,905.60x = 148,822,662,345,130,080
  5. Step 5: Solve for x
    x = 148,822,662,345,130,080/354,136,905.60
  6. Step 6: Final answer
    x = 420,240,477.60

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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.