Home / 665,200,072.42-917,982,047.86-367,862,320.50

Finding the Fourth Proportional to 665,200,072.42, 917,982,047.86 and 367,862,320.50

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Solution

The fourth proportional to 665,200,072.42, 917,982,047.86 and 367,862,320.50 is: 507,653,291.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,200,072.42 : 917,982,047.86 = 367,862,320.50 : x
  2. Step 2: Convert to fraction form
    665,200,072.42/917,982,047.86 = 367,862,320.50/x
  3. Step 3: Cross multiply
    665,200,072.42x = 917,982,047.86 × 367,862,320.50
  4. Step 4: Simplify right side
    665,200,072.42x = 337,691,006,303,577,280
  5. Step 5: Solve for x
    x = 337,691,006,303,577,280/665,200,072.42
  6. Step 6: Final answer
    x = 507,653,291.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.