Home / 426,492,037.20-639,738,055.80-357,617,283.60

Finding the Fourth Proportional to 426,492,037.20, 639,738,055.80 and 357,617,283.60

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Solution

The fourth proportional to 426,492,037.20, 639,738,055.80 and 357,617,283.60 is: 536,425,925.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,492,037.20 : 639,738,055.80 = 357,617,283.60 : x
  2. Step 2: Convert to fraction form
    426,492,037.20/639,738,055.80 = 357,617,283.60/x
  3. Step 3: Cross multiply
    426,492,037.20x = 639,738,055.80 × 357,617,283.60
  4. Step 4: Simplify right side
    426,492,037.20x = 228,781,385,730,741,216
  5. Step 5: Solve for x
    x = 228,781,385,730,741,216/426,492,037.20
  6. Step 6: Final answer
    x = 536,425,925.40

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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.