Home / 426,597,326.40-639,895,989.60-297,350,875.20

Finding the Fourth Proportional to 426,597,326.40, 639,895,989.60 and 297,350,875.20

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Solution

The fourth proportional to 426,597,326.40, 639,895,989.60 and 297,350,875.20 is: 446,026,312.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,597,326.40 : 639,895,989.60 = 297,350,875.20 : x
  2. Step 2: Convert to fraction form
    426,597,326.40/639,895,989.60 = 297,350,875.20/x
  3. Step 3: Cross multiply
    426,597,326.40x = 639,895,989.60 × 297,350,875.20
  4. Step 4: Simplify right side
    426,597,326.40x = 190,273,632,544,530,112
  5. Step 5: Solve for x
    x = 190,273,632,544,530,112/426,597,326.40
  6. Step 6: Final answer
    x = 446,026,312.80

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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.