Home / 648,619,134.92-974,480,838.38-415,905,784.91

Finding the Fourth Proportional to 648,619,134.92, 974,480,838.38 and 415,905,784.91

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Solution

The fourth proportional to 648,619,134.92, 974,480,838.38 and 415,905,784.91 is: 624,853,933.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,619,134.92 : 974,480,838.38 = 415,905,784.91 : x
  2. Step 2: Convert to fraction form
    648,619,134.92/974,480,838.38 = 415,905,784.91/x
  3. Step 3: Cross multiply
    648,619,134.92x = 974,480,838.38 × 415,905,784.91
  4. Step 4: Simplify right side
    648,619,134.92x = 405,292,217,966,545,472
  5. Step 5: Solve for x
    x = 405,292,217,966,545,472/648,619,134.92
  6. Step 6: Final answer
    x = 624,853,933.76

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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.