Home / 457,768,278.40-686,652,417.60-264,276,515.20

Finding the Fourth Proportional to 457,768,278.40, 686,652,417.60 and 264,276,515.20

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Solution

The fourth proportional to 457,768,278.40, 686,652,417.60 and 264,276,515.20 is: 396,414,772.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,768,278.40 : 686,652,417.60 = 264,276,515.20 : x
  2. Step 2: Convert to fraction form
    457,768,278.40/686,652,417.60 = 264,276,515.20/x
  3. Step 3: Cross multiply
    457,768,278.40x = 686,652,417.60 × 264,276,515.20
  4. Step 4: Simplify right side
    457,768,278.40x = 181,466,108,076,983,136
  5. Step 5: Solve for x
    x = 181,466,108,076,983,136/457,768,278.40
  6. Step 6: Final answer
    x = 396,414,772.80

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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.