Home / 487,782,004.40-731,430,905.70-176,877,209.60

Finding the Fourth Proportional to 487,782,004.40, 731,430,905.70 and 176,877,209.60

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Solution

The fourth proportional to 487,782,004.40, 731,430,905.70 and 176,877,209.60 is: 265,228,024.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,782,004.40 : 731,430,905.70 = 176,877,209.60 : x
  2. Step 2: Convert to fraction form
    487,782,004.40/731,430,905.70 = 176,877,209.60/x
  3. Step 3: Cross multiply
    487,782,004.40x = 731,430,905.70 × 176,877,209.60
  4. Step 4: Simplify right side
    487,782,004.40x = 129,373,457,615,416,736
  5. Step 5: Solve for x
    x = 129,373,457,615,416,736/487,782,004.40
  6. Step 6: Final answer
    x = 265,228,024.91

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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.