Home / 425,216,067.60-637,824,101.40-287,466,560.40

Finding the Fourth Proportional to 425,216,067.60, 637,824,101.40 and 287,466,560.40

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Solution

The fourth proportional to 425,216,067.60, 637,824,101.40 and 287,466,560.40 is: 431,199,840.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,216,067.60 : 637,824,101.40 = 287,466,560.40 : x
  2. Step 2: Convert to fraction form
    425,216,067.60/637,824,101.40 = 287,466,560.40/x
  3. Step 3: Cross multiply
    425,216,067.60x = 637,824,101.40 × 287,466,560.40
  4. Step 4: Simplify right side
    425,216,067.60x = 183,353,100,569,678,816
  5. Step 5: Solve for x
    x = 183,353,100,569,678,816/425,216,067.60
  6. Step 6: Final answer
    x = 431,199,840.60

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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.