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Finding the Fourth Proportional to 279,854,617.60, 419,958,873.60 and 164,838,937.60

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Solution

The fourth proportional to 279,854,617.60, 419,958,873.60 and 164,838,937.60 is: 247,362,631.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,854,617.60 : 419,958,873.60 = 164,838,937.60 : x
  2. Step 2: Convert to fraction form
    279,854,617.60/419,958,873.60 = 164,838,937.60/x
  3. Step 3: Cross multiply
    279,854,617.60x = 419,958,873.60 × 164,838,937.60
  4. Step 4: Simplify right side
    279,854,617.60x = 69,225,574,559,916,688
  5. Step 5: Solve for x
    x = 69,225,574,559,916,688/279,854,617.60
  6. Step 6: Final answer
    x = 247,362,631.19

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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.