Home / 511,559,990.40-767,339,985.60-188,569,833.60

Finding the Fourth Proportional to 511,559,990.40, 767,339,985.60 and 188,569,833.60

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Solution

The fourth proportional to 511,559,990.40, 767,339,985.60 and 188,569,833.60 is: 282,854,750.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,559,990.40 : 767,339,985.60 = 188,569,833.60 : x
  2. Step 2: Convert to fraction form
    511,559,990.40/767,339,985.60 = 188,569,833.60/x
  3. Step 3: Cross multiply
    511,559,990.40x = 767,339,985.60 × 188,569,833.60
  4. Step 4: Simplify right side
    511,559,990.40x = 144,697,173,399,218,400
  5. Step 5: Solve for x
    x = 144,697,173,399,218,400/511,559,990.40
  6. Step 6: Final answer
    x = 282,854,750.40

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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.