Home / 285,709,890.48-428,462,076.02-98,913,112.08

Finding the Fourth Proportional to 285,709,890.48, 428,462,076.02 and 98,913,112.08

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Solution

The fourth proportional to 285,709,890.48, 428,462,076.02 and 98,913,112.08 is: 148,334,092.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,709,890.48 : 428,462,076.02 = 98,913,112.08 : x
  2. Step 2: Convert to fraction form
    285,709,890.48/428,462,076.02 = 98,913,112.08/x
  3. Step 3: Cross multiply
    285,709,890.48x = 428,462,076.02 × 98,913,112.08
  4. Step 4: Simplify right side
    285,709,890.48x = 42,380,517,346,901,176
  5. Step 5: Solve for x
    x = 42,380,517,346,901,176/285,709,890.48
  6. Step 6: Final answer
    x = 148,334,092.58

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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.