Home / 340,829,999.60-511,244,999.40-260,208,431.60

Finding the Fourth Proportional to 340,829,999.60, 511,244,999.40 and 260,208,431.60

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Solution

The fourth proportional to 340,829,999.60, 511,244,999.40 and 260,208,431.60 is: 390,312,647.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,829,999.60 : 511,244,999.40 = 260,208,431.60 : x
  2. Step 2: Convert to fraction form
    340,829,999.60/511,244,999.40 = 260,208,431.60/x
  3. Step 3: Cross multiply
    340,829,999.60x = 511,244,999.40 × 260,208,431.60
  4. Step 4: Simplify right side
    340,829,999.60x = 133,030,259,457,216,928
  5. Step 5: Solve for x
    x = 133,030,259,457,216,928/340,829,999.60
  6. Step 6: Final answer
    x = 390,312,647.40

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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.