Home / 426,492,061.20-639,738,091.80-357,617,307.60

Finding the Fourth Proportional to 426,492,061.20, 639,738,091.80 and 357,617,307.60

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Solution

The fourth proportional to 426,492,061.20, 639,738,091.80 and 357,617,307.60 is: 536,425,961.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,492,061.20 : 639,738,091.80 = 357,617,307.60 : x
  2. Step 2: Convert to fraction form
    426,492,061.20/639,738,091.80 = 357,617,307.60/x
  3. Step 3: Cross multiply
    426,492,061.20x = 639,738,091.80 × 357,617,307.60
  4. Step 4: Simplify right side
    426,492,061.20x = 228,781,413,958,677,632
  5. Step 5: Solve for x
    x = 228,781,413,958,677,632/426,492,061.20
  6. Step 6: Final answer
    x = 536,425,961.40

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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.