Home / 648,619,152.52-974,480,865.30-415,905,802.60

Finding the Fourth Proportional to 648,619,152.52, 974,480,865.30 and 415,905,802.60

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Solution

The fourth proportional to 648,619,152.52, 974,480,865.30 and 415,905,802.60 is: 624,853,960.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,619,152.52 : 974,480,865.30 = 415,905,802.60 : x
  2. Step 2: Convert to fraction form
    648,619,152.52/974,480,865.30 = 415,905,802.60/x
  3. Step 3: Cross multiply
    648,619,152.52x = 974,480,865.30 × 415,905,802.60
  4. Step 4: Simplify right side
    648,619,152.52x = 405,292,246,400,939,008
  5. Step 5: Solve for x
    x = 405,292,246,400,939,008/648,619,152.52
  6. Step 6: Final answer
    x = 624,853,960.64

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1.5x scale

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.