Home / 457,812,037.40-686,718,056.10-439,955,619.80

Finding the Fourth Proportional to 457,812,037.40, 686,718,056.10 and 439,955,619.80

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Solution

The fourth proportional to 457,812,037.40, 686,718,056.10 and 439,955,619.80 is: 659,933,429.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,812,037.40 : 686,718,056.10 = 439,955,619.80 : x
  2. Step 2: Convert to fraction form
    457,812,037.40/686,718,056.10 = 439,955,619.80/x
  3. Step 3: Cross multiply
    457,812,037.40x = 686,718,056.10 × 439,955,619.80
  4. Step 4: Simplify right side
    457,812,037.40x = 302,125,467,999,326,720
  5. Step 5: Solve for x
    x = 302,125,467,999,326,720/457,812,037.40
  6. Step 6: Final answer
    x = 659,933,429.70

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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.