Home / 648,619,181.61-974,480,908.64-415,905,831.48

Finding the Fourth Proportional to 648,619,181.61, 974,480,908.64 and 415,905,831.48

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Solution

The fourth proportional to 648,619,181.61, 974,480,908.64 and 415,905,831.48 is: 624,854,003.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,619,181.61 : 974,480,908.64 = 415,905,831.48 : x
  2. Step 2: Convert to fraction form
    648,619,181.61/974,480,908.64 = 415,905,831.48/x
  3. Step 3: Cross multiply
    648,619,181.61x = 974,480,908.64 × 415,905,831.48
  4. Step 4: Simplify right side
    648,619,181.61x = 405,292,292,569,305,152
  5. Step 5: Solve for x
    x = 405,292,292,569,305,152/648,619,181.61
  6. Step 6: Final answer
    x = 624,854,003.80

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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.