Home / 426,597,325.40-639,895,988.10-297,350,874.20

Finding the Fourth Proportional to 426,597,325.40, 639,895,988.10 and 297,350,874.20

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Solution

The fourth proportional to 426,597,325.40, 639,895,988.10 and 297,350,874.20 is: 446,026,311.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,597,325.40 : 639,895,988.10 = 297,350,874.20 : x
  2. Step 2: Convert to fraction form
    426,597,325.40/639,895,988.10 = 297,350,874.20/x
  3. Step 3: Cross multiply
    426,597,325.40x = 639,895,988.10 × 297,350,874.20
  4. Step 4: Simplify right side
    426,597,325.40x = 190,273,631,458,607,808
  5. Step 5: Solve for x
    x = 190,273,631,458,607,808/426,597,325.40
  6. Step 6: Final answer
    x = 446,026,311.30

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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.