Home / 425,606,601.60-638,362,663.20-348,795,662.40

Finding the Fourth Proportional to 425,606,601.60, 638,362,663.20 and 348,795,662.40

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Solution

The fourth proportional to 425,606,601.60, 638,362,663.20 and 348,795,662.40 is: 523,154,779.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,606,601.60 : 638,362,663.20 = 348,795,662.40 : x
  2. Step 2: Convert to fraction form
    425,606,601.60/638,362,663.20 = 348,795,662.40/x
  3. Step 3: Cross multiply
    425,606,601.60x = 638,362,663.20 × 348,795,662.40
  4. Step 4: Simplify right side
    425,606,601.60x = 222,658,127,962,272,096
  5. Step 5: Solve for x
    x = 222,658,127,962,272,096/425,606,601.60
  6. Step 6: Final answer
    x = 523,154,779.85

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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.