Home / 258,989,476.40-388,484,214.60-201,168,695.60

Finding the Fourth Proportional to 258,989,476.40, 388,484,214.60 and 201,168,695.60

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Solution

The fourth proportional to 258,989,476.40, 388,484,214.60 and 201,168,695.60 is: 301,753,043.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,989,476.40 : 388,484,214.60 = 201,168,695.60 : x
  2. Step 2: Convert to fraction form
    258,989,476.40/388,484,214.60 = 201,168,695.60/x
  3. Step 3: Cross multiply
    258,989,476.40x = 388,484,214.60 × 201,168,695.60
  4. Step 4: Simplify right side
    258,989,476.40x = 78,150,862,712,272,480
  5. Step 5: Solve for x
    x = 78,150,862,712,272,480/258,989,476.40
  6. Step 6: Final answer
    x = 301,753,043.40

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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.