Home / 257,916,801.60-386,875,202.40-66,440,577.60

Finding the Fourth Proportional to 257,916,801.60, 386,875,202.40 and 66,440,577.60

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Solution

The fourth proportional to 257,916,801.60, 386,875,202.40 and 66,440,577.60 is: 99,660,866.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,916,801.60 : 386,875,202.40 = 66,440,577.60 : x
  2. Step 2: Convert to fraction form
    257,916,801.60/386,875,202.40 = 66,440,577.60/x
  3. Step 3: Cross multiply
    257,916,801.60x = 386,875,202.40 × 66,440,577.60
  4. Step 4: Simplify right side
    257,916,801.60x = 25,704,211,906,572,904
  5. Step 5: Solve for x
    x = 25,704,211,906,572,904/257,916,801.60
  6. Step 6: Final answer
    x = 99,660,866.40

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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.