Home / 538,831,982.10-808,247,973.15-422,605,835.40

Finding the Fourth Proportional to 538,831,982.10, 808,247,973.15 and 422,605,835.40

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Solution

The fourth proportional to 538,831,982.10, 808,247,973.15 and 422,605,835.40 is: 633,908,753.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,831,982.10 : 808,247,973.15 = 422,605,835.40 : x
  2. Step 2: Convert to fraction form
    538,831,982.10/808,247,973.15 = 422,605,835.40/x
  3. Step 3: Cross multiply
    538,831,982.10x = 808,247,973.15 × 422,605,835.40
  4. Step 4: Simplify right side
    538,831,982.10x = 341,570,309,903,412,480
  5. Step 5: Solve for x
    x = 341,570,309,903,412,480/538,831,982.10
  6. Step 6: Final answer
    x = 633,908,753.10

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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.