Home / 282,364,999.90-423,547,499.85-129,309,991.90

Finding the Fourth Proportional to 282,364,999.90, 423,547,499.85 and 129,309,991.90

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Solution

The fourth proportional to 282,364,999.90, 423,547,499.85 and 129,309,991.90 is: 193,964,987.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,364,999.90 : 423,547,499.85 = 129,309,991.90 : x
  2. Step 2: Convert to fraction form
    282,364,999.90/423,547,499.85 = 129,309,991.90/x
  3. Step 3: Cross multiply
    282,364,999.90x = 423,547,499.85 × 129,309,991.90
  4. Step 4: Simplify right side
    282,364,999.90x = 54,768,923,774,868,760
  5. Step 5: Solve for x
    x = 54,768,923,774,868,760/282,364,999.90
  6. Step 6: Final answer
    x = 193,964,987.85

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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.