Home / 457,781,881.60-686,672,822.40-407,617,350.40

Finding the Fourth Proportional to 457,781,881.60, 686,672,822.40 and 407,617,350.40

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Solution

The fourth proportional to 457,781,881.60, 686,672,822.40 and 407,617,350.40 is: 611,426,025.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,781,881.60 : 686,672,822.40 = 407,617,350.40 : x
  2. Step 2: Convert to fraction form
    457,781,881.60/686,672,822.40 = 407,617,350.40/x
  3. Step 3: Cross multiply
    457,781,881.60x = 686,672,822.40 × 407,617,350.40
  4. Step 4: Simplify right side
    457,781,881.60x = 279,899,756,458,377,728
  5. Step 5: Solve for x
    x = 279,899,756,458,377,728/457,781,881.60
  6. Step 6: Final answer
    x = 611,426,025.60

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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.