Home / 427,248,429.60-640,872,644.40-283,641,261.60

Finding the Fourth Proportional to 427,248,429.60, 640,872,644.40 and 283,641,261.60

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Solution

The fourth proportional to 427,248,429.60, 640,872,644.40 and 283,641,261.60 is: 425,461,892.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,248,429.60 : 640,872,644.40 = 283,641,261.60 : x
  2. Step 2: Convert to fraction form
    427,248,429.60/640,872,644.40 = 283,641,261.60/x
  3. Step 3: Cross multiply
    427,248,429.60x = 640,872,644.40 × 283,641,261.60
  4. Step 4: Simplify right side
    427,248,429.60x = 181,777,925,382,544,192
  5. Step 5: Solve for x
    x = 181,777,925,382,544,192/427,248,429.60
  6. Step 6: Final answer
    x = 425,461,892.40

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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.